Releases

AI-analyzed release notes for CNCF graduated and incubating projects.

URGENCY

All Action needed Check if affected Plan ahead

KIND

All Security Breaking Deprecated

Category

All AI & ML CI/CD & App Delivery Kubernetes Core Networking & Messaging Observability Orchestration & Management Provisioning & Runtime Security Storage & Data

Daprv1.18.0Orchestration & ManagementJun 10, 2026

ACTION 8CHECK 6PLAN 1OTHER 108View full analysis

A substantial operator-facing release adds workflow and MCP capabilities alongside control-plane, API, component, and lifecycle changes. It also includes security fixes, dependency and default updates, and compatibility constraints that affect upgrade planning and configuration review.

Action needed (8)

securitymediumThe golang.org/x/image dependency update for GO-2026-4962
golang.org/x/image is updated to v0.39.0 for GO-2026-4962.
securityThe durabletask-go and pgx dependency updates
durabletask-go is updated to v0.12.1, and pgx is updated as part of the vulnerability fixes.
breakingThe WorkflowsRemoteActivityReminder default, enabled
WorkflowsRemoteActivityReminder is enabled by default. Cross-app workflow activity results are delivered through Scheduler reminders unless the setting is changed.
breakingThe HotReload default, enabled
HotReload is enabled by default for Components, Subscriptions, MCPServers, Configurations, HTTPEndpoints, Resiliencies, and WorkflowAccessPolicies.
breakingSidecar probe defaults
Sidecar probe defaults now give liveness more time before a kubelet restart, at about 230 seconds, while readiness responds more quickly.
breakingThe HotReload default, enabled in v1.18
HotReload is enabled by default in v1.18.
breakingLiveness and readiness probe defaults
The default liveness probe is widened, and the readiness probe default is tightened.
breakingChanged sidecar probe defaults
Sidecar probe defaults now set liveness to be more lenient, at about 230 seconds before a kubelet restart, and readiness to be tighter, at about 3 seconds for the control plane and 5 seconds for daprd.

Check if affected (6)

securityService invocation path traversal ACL bypass fix
Applies if you use service invocation.
breakingThe MCPServerResource and WorkflowAccessPolicy feature gates, removed
Applies if you configure the MCPServerResource or WorkflowAccessPolicy feature gates.
breakingThe Sentry Ed25519 workload identity key rollback constraint
Applicability is not stated in the release notes.
+ 3 more on the release page

Plan ahead (1)

deprecatedThe ScheduleJobAlpha1 alpha RPCs, deprecated
Applies if you use ScheduleJobAlpha1.

Chaos Meshv2.8.3ObservabilityJun 10, 2026

ACTION 2OTHER 1View full analysis

A security-focused maintenance release includes undisclosed container-image CVE fixes and updates image components. It also corrects NetworkChaos recovery for targets in CrashLoopBackOff by falling back to the sandbox (pause) container PID for network namespace operations.

Action needed (2)

securityGo toolchain and containerd upgrades
The Go toolchain (1.25.11) and containerd (1.7.32) were upgraded in the container images.
securitymemStress rebuild and headless JRE for chaos-daemon
The memStress helper was rebuilt with the modern Go toolchain (v0.3.1), and the chaos-daemon image switched to a headless JRE.

Open Policy Agent (OPA)v1.17.1SecurityJun 8, 2026

ACTION 1View full analysis

A security-focused maintenance release updates the Go toolchain used to build official OPA binaries to address two disclosed standard-library vulnerabilities affecting OPA's HTTP handler and crypto builtins. Users who build their own binaries or images manage the Go version themselves.

Action needed (1)

securitymediumThe Go 1.26.4 build toolchain update
OPA is built with Go 1.26.4 in this release. The update fixes standard-library vulnerabilities used by OPA's HTTP handler and crypto builtins, identified as GO-2026-5037 and GO-2026-5039.

Crossplanev1.20.9Orchestration & ManagementJun 5, 2026

ACTION 1OTHER 2View full analysis

This Crossplane release combines dependency maintenance with a new CLI check for upgrade readiness. The check scans a live v1.x control plane for features removed or changed in Crossplane v2 and reports what would break before an upgrade.

Action needed (1)

securityThe golang.org/x/net module, updated to v0.55.0
The golang.org/x/net module is updated to v0.55.0 in Crossplane v1.20.9. The release note marks this dependency update as security-related, but does not identify a specific vulnerability.

Cortexv1.21.1ObservabilityJun 5, 2026

CHECK 3OTHER 7View full analysis

A maintenance release with operator-facing security fixes and configuration changes across ingestion, distribution, and status pages. It also includes fixes for request handling, authentication, configuration exposure, gossip limits, and client and runtime panics.

Check if affected (3)

securityStored XSS protection in Alertmanager and Store Gateway status pages
Applies if you run Alertmanager or Store Gateway.
securityWrappedHistogram native histogram size limit
Applies if you use native histograms.
breakingDecompressed gzip output limit for ParseProtoReader and OTLP ingestion
Applies if you use the OTLP ingestion path.

OpenFGAv1.17.1SecurityJun 5, 2026

ACTION 2OTHER 3View full analysis

OpenFGA v1.17.1 combines correctness fixes with security-related Go toolchain and image dependency updates. The security updates address Go standard library vulnerabilities in the toolchain and released images.

Action needed (2)

securityThe Go toolchain, updated to 1.26.4
OpenFGA v1.17.1 updates the Go toolchain version to 1.26.4 to address Go standard library vulnerabilities.
securitygrpc-health-probe updated to v0.4.52
Released images update grpc-health-probe to v0.4.52, rebuilt with Go 1.26.4, so they no longer ship the Go standard library vulnerabilities addressed by this update.

Istio1.29.4Networking & MessagingJun 4, 2026

ACTION 1OTHER 6View full analysis

A maintenance release with a security fix for Envoy and operator-relevant correctness fixes across Istio ambient, gateway, routing, and CNI behavior. It also adds automatic fallback from the nftables backend to iptables when the bundled nft binary lacks JSON support.

Action needed (1)

securityhighCVE-2026-47774 Envoy memory exhaustion fix
CVE-2026-47774 fixes an Envoy memory exhaustion issue in which specially crafted HTTP/2 requests could bypass request header size accounting and trigger excessive memory use. The fix ships in Envoy.

Istio1.28.8Networking & MessagingJun 4, 2026

ACTION 1OTHER 3View full analysis

A maintenance release with a disclosed Envoy denial-of-service fix and additional correctness fixes. The security fix addresses memory exhaustion from specially crafted HTTP/2 requests, while the other corrections do not require setup changes.

Action needed (1)

securityhighThe Envoy denial-of-service vulnerability CVE-2026-47774, fixed
CVE-2026-47774 fixes an Envoy denial-of-service vulnerability in which specially crafted HTTP/2 requests could cause excessive memory consumption. The fix accounts for cookie header bytes during request header size validation and limits total decoded header size in HPACK processing.

Istio1.30.1Networking & MessagingJun 4, 2026

ACTION 1CHECK 1OTHER 15View full analysis

A maintenance release with an Envoy denial-of-service security fix, defect corrections, new operator-facing capabilities, a dependency update, and removal of a feature-gate guard. The security fix addresses disclosed advisory CVE-2026-47774.

Action needed (1)

securityhighCVE-2026-47774 Envoy denial-of-service fix
The fix addresses CVE-2026-47774 in Envoy, where specially crafted HTTP/2 requests could exhaust process memory because decoded header size was not fully limited during request validation.

Check if affected (1)

breakingPILOT_ENABLE_ALPHA_GATEWAY_API guard removed from ListenerSet
Applies if you use the ListenerSet API.

Envoyv1.38.1Networking & MessagingJun 4, 2026

ACTION 1CHECK 4OTHER 2View full analysis

A maintenance release with HTTP/2 protections, an nghttp2 patch, and an OAuth2 HMAC verification fix. It also changes router response-body output and EDS batch load-balancer rebuild defaults, while the release notes include crash fixes in OAuth2 token-cookie decryption and dynamic HTTP filters.

Action needed (1)

securityhighnghttp2 patch for CVE-2026-27135
The nghttp2 dependency includes the patch for CVE-2026-27135. The patched dependency ships in v1.38.1.

Check if affected (4)

securityhighHTTP/2 header-limit enforcement and cookie accounting
Applies if you use HTTP/2 and do not enable envoy.reloadable_features.http2_include_cookies_in_limits.
securityOAuth2 HMAC verification timing side-channel fix
Applies if you use oauth2.
breakingRouter transport-failure reason response body
Applies if you use the router and do not enable envoy.reloadable_features.hide_transport_failure_reason_in_response_body.
+ 1 more on the release page

Keycloak26.6.3SecurityJun 4, 2026

ACTION 2CHECK 15OTHER 30View full analysis

A security-focused maintenance release with fixes spanning OIDC, authorization and account APIs, identity features, federation, WebAuthn, SAML, Netty, and lodash. It also updates dependencies and adds startup and SPI behavior alongside numerous correctness fixes.

Action needed (2)

securityhighCVE-2026-4800 lodash code injection
CVE-2026-4800 is addressed in the account UI, where lodash was vulnerable to code injection.
securitymediumCVE-2026-42581 Netty HTTP/1.0 smuggling sanitization
CVE-2026-42581 is addressed in Netty, correcting HTTP/1.0 TE and CL coexistence that bypassed smuggling sanitization.

Check if affected (15)

securitymediumCVE-2026-7500 account API access control
Applies if you use account/api.
securitymediumCVE-2026-8922 OIDC token introspection notBefore handling
Applies if you use oidc.
securitymediumCVE-2026-8830 server-side WebAuthn validation
Applies if you use authentication/webauthn.
+ 12 more on the release page

Envoyv1.37.3Networking & MessagingJun 4, 2026

ACTION 1CHECK 2OTHER 2View full analysis

A maintenance release focused on security and correctness fixes. The remaining heading-only items have no operator-facing changes.

Action needed (1)

securityhighnghttp2 CVE-2026-27135 patch
The nghttp2 CVE-2026-27135 patch is applied in the release.

Check if affected (2)

securityhighHTTP/2 header list limits and cookie accounting
Applies if you use HTTP/2.
securityOAuth2 HMAC verification timing
Applies if you use oauth2.

Envoyv1.36.7Networking & MessagingJun 4, 2026

ACTION 1CHECK 2OTHER 2View full analysis

Envoy v1.36.7 is a security-focused update with changes to HTTP/2 handling and OAuth2 authentication. It also includes an nghttp2 security patch, so deployments using these components are directly affected.

Action needed (1)

securityhighThe nghttp2 CVE-2026-27135 patch
Envoy v1.36.7 applies the nghttp2 patch for CVE-2026-27135 in its HTTP/2 handling.

Check if affected (2)

securityhighHTTP/2 header-limit enforcement and cookie accounting
Applies if you use HTTP/2 with configured header list or request-header limits.
securityOAuth2 HMAC verification timing side-channel fix
Applies if you use the OAuth2 filter.

Envoyv1.35.11Networking & MessagingJun 3, 2026

ACTION 1CHECK 2OTHER 4View full analysis

Envoy v1.35.11 is a security-focused release with fixes in HTTP/2, OAuth2, and nghttp2. It also includes ordinary bug fixes and new statistics capabilities, while the security changes are the ones that require upgrading.

Action needed (1)

securityhighThe nghttp2 CVE-2026-27135 patch
Envoy v1.35.11 applies the nghttp2 patch for CVE-2026-27135.

Check if affected (2)

securityhighHTTP/2 header limits and cookie accounting
Applies if you use HTTP/2 request header limits.
securityOAuth2 HMAC verification timing protection
Applies if you use OAuth2 HMAC verification.

KubeVirtv1.8.3Orchestration & ManagementJun 3, 2026

ACTION 2PLAN 1OTHER 13View full analysis

A maintenance release with a fix for symlink traversal, a gRPC dependency update addressing GHSA-p77j-4mvh-x3m3, and deprecated recording rules. It also contains correctness fixes across VM status reporting, device resource handling, live migration, alerts, and VM operations.

Action needed (2)

securitycriticalgoogle.golang.org/grpc update to 1.79.3
The google.golang.org/grpc dependency is bumped to 1.79.3 to remediate GHSA-p77j-4mvh-x3m3.
securitySymlink traversal fix in the VMExport directory handler
The VMExport directory handler is fixed to prevent symlink traversal.

Plan ahead (1)

deprecatedDeprecated kubevirt_vm_created_total and kubevirt_vm_created_by_pod_total recording rules
Applies if you use kubevirt_vm_created_total or kubevirt_vm_created_by_pod_total.

KubeVirtv1.7.4Orchestration & ManagementJun 3, 2026

ACTION 1OTHER 5View full analysis

KubeVirt v1.7.4 includes correctness fixes and behavior changes affecting PCI topology and IPv6 migration. It also updates the gRPC dependency to address CVE-2026-33186.

Action needed (1)

securitycriticalThe google.golang.org/grpc dependency update for CVE-2026-33186
KubeVirt v1.7.4 updates google.golang.org/grpc to version 1.79.3 to remediate CVE-2026-33186.

KubeVirtv1.6.6Orchestration & ManagementJun 3, 2026

ACTION 1OTHER 8View full analysis

KubeVirt v1.6.6 includes a dependency update for CVE-2026-33186. The recorded change affects the gRPC dependency shipped with this release.

Action needed (1)

securitycriticalgoogle.golang.org/grpc update for CVE-2026-33186
KubeVirt v1.6.6 bumps google.golang.org/grpc to remediate CVE-2026-33186.

wasmCloudv2.3.0Orchestration & ManagementJun 3, 2026

ACTION 2OTHER 12View full analysis

Version v2.3.0 adds workload configuration and telemetry capabilities while correcting wash and runtime defects. It also changes RBAC scope support and updates dependencies, including security patches and reported advisory fixes.

Action needed (2)

securityThe wasmtime 44.0.2 security patch
The release updates wasmtime to 44.0.2 as a security patch.
securityReported dependency security advisories
The dependency set includes patches for reported security advisories.

containerdv2.1.8Kubernetes CoreJun 2, 2026

ACTION 1OTHER 4View full analysis

containerd v2.1.8 includes a disclosed security correction identified by CVE-2026-46680 and GHSA-fqw6-gf59-qr4w. The release also contains operator-facing runtime and snapshotter changes in its broader changelog.

Action needed (1)

securityhighCVE-2026-46680 security correction
containerd v2.1.8 includes a correction for CVE-2026-46680, associated with GHSA-fqw6-gf59-qr4w.

OpenFGAv1.17.0SecurityJun 2, 2026

ACTION 1OTHER 1View full analysis

OpenFGA v1.17.0 adds configurable trace sampling and changes cache key generation. The release concerns deployments that configure tracing or depend on cache key behavior.

Action needed (1)

securityTLV-based cache key generation
OpenFGA v1.17.0 redesigns cache key generation with TLV binary encoding, removing collision risk from string concatenation. It also adds per-process hash seeding to prevent hash-flooding attacks.

etcdv3.5.31Kubernetes CoreJun 1, 2026

ACTION 1OTHER 3View full analysis

A maintenance release with correctness fixes and dependency updates. The golang.org/x/crypto update addresses GO-2026-5026.

Action needed (1)

securitycriticalThe golang.org/x/crypto dependency update for GO-2026-5026
The golang.org/x/crypto dependency is updated to v0.52.0 to address GO-2026-5026.

KEDAv2.20.0Orchestration & ManagementJun 1, 2026

CHECK 7PLAN 1OTHER 70View full analysis

This release adds scalers, configuration options, metrics, authentication modes, and compatibility improvements. Operators with custom RBAC need to account for the Kubernetes events API migration, and users of removed scaler settings need to update their configurations.

Check if affected (7)

securityCredential headers on cross-host redirects and HTTPS downgrades
Applicability is not stated in the release notes.
breakingScaledObject name length validation
Applies when a ScaledObject name exceeds 63 characters.
breakingPositive unprocessedEventThreshold values
Applies if you configure a non-positive unprocessedEventThreshold.
+ 4 more on the release page

Plan ahead (1)

deprecatedThe buildId, selectAllActive, and selectUnversioned settings, deprecated
Applies if you configure buildId, selectAllActive, or selectUnversioned.

Volcanov1.15.0Orchestration & ManagementJun 1, 2026

ACTION 4CHECK 2OTHER 83View full analysis

A feature and operational-hardening release that adds alpha scheduling capabilities, new scheduler and Helm configuration, and fixes scheduler and integration stability issues. Operators should review Kubernetes and DRA compatibility requirements, the changed DRA default, and the disclosed denial-of-service and Prometheus security fixes.

Action needed (4)

securitymediumPrometheus dependency update for GHSA-vffh-x6r8-xx99
Updates github.com/prometheus/prometheus to address stored XSS advisory GHSA-vffh-x6r8-xx99.
securitymediumAdmission webhook request body limits
The admission webhook now limits request bodies, fixing the denial-of-service risk identified by CVE-2026-44247 and GHSA-8wxp-xxp2-rcgx.
breakingDRA scheduling integration default
DRA scheduling integration is enabled by default.
breakingDRA scheduling integration default behavior
DRA scheduling integration is enabled by default to align with Kubernetes 1.34 and later behavior. Set predicate.DynamicResourceAllocationEnable to false to disable it.

Check if affected (2)

breakingOpt-in SchedulingGatesQueueAdmission
Applies if you enable SchedulingGatesQueueAdmission.
breakingOpt-in gang-aware preemption and reclamation
Applies if you configure gangPreempt and gangReclaim and do not configure preempt or reclaim.

Karmadav1.18.0Orchestration & ManagementMay 30, 2026

ACTION 1CHECK 9OTHER 35View full analysis

A feature and maintenance release that adds overflow scheduling and scheduling overcommit protection, along with API, default, constraint, metric, and flag changes. It also includes a security-related alpine base-image update and numerous defect corrections.

Action needed (1)

securityThe alpine base image update
The alpine base image has changed from alpine:3.23.3 to alpine:3.23.4 to address security concerns.

Check if affected (9)

breakingThe overflowAffinities field
Applies if you configure overflowAffinities.
breakingStricter clusterTolerations operator validation
Applies if you set spec.placement.clusterTolerations with Lt or Gt.
breakingThe operator's default verbosity level
Applies if you run the operator.
+ 6 more on the release page

OpenCostv1.120.3ObservabilityMay 29, 2026

ACTION 1CHECK 1OTHER 51View full analysis

A maintenance release with dependency updates, correctness fixes, and new cloud and query capabilities. Configuration and output behavior also change, along with a Go dependency upgrade for GHSA-xmrv-pmrh-hhx2 and CVE-2026-34986.

Action needed (1)

securityhighGo dependency upgrades for GHSA-xmrv-pmrh-hhx2 and CVE-2026-34986
Go dependencies are upgraded for GHSA-xmrv-pmrh-hhx2 and CVE-2026-34986.

Check if affected (1)

breakingThe MCP_SERVER_ENABLED default is false
Applies if you do not configure MCP_SERVER_ENABLED.

Confidential Containersv0.21.0SecurityMay 29, 2026

ACTION 1PLAN 4OTHER 16View full analysis

A release with Trustee, KBS, attestation, and platform-support changes, plus a security advisory fix. It also deprecates several CAA components and images planned for removal in 0.22.

Action needed (1)

securityGHSA-84rc-2q4r-45pc advisory fix
The release patches GHSA-84rc-2q4r-45pc in the guest components.

Plan ahead (4)

deprecatedpacker-built CAA podvm image deprecationdeprecated since 0.17 · removal planned in 0.22
Applies if you use the packer-built CAA podvm image.
deprecatedCAA docker provider deprecationdeprecated since 0.20 · removal planned in 0.22
Applies if you use the CAA docker provider.
deprecatedFedora-based mkosi-built CAA podvm image deprecationdeprecated since 0.20 · removal planned in 0.22
Applies if you use the Fedora-based mkosi-built CAA podvm image.
+ 1 more on the release page

Kubescapev4.0.9SecurityMay 29, 2026

ACTION 3CHECK 3OTHER 105View full analysis

A broad maintenance release with correctness fixes, new CLI and reporting capabilities, anonymization updates, a performance improvement, added validation, and dependency refreshes. It also includes security fixes alongside changes to output and push defaults.

Action needed (3)

securityDependency updates for security advisories
Dependencies are updated to address security advisories.
securityEnvFrom clearing in container data removal
removeContainersData now clears EnvFrom to prevent secret name leakage.
securityEnv[].ValueFrom clearing in container data removal
removeContainersData and removeEphemeralContainersData now clear Env[].ValueFrom.

Check if affected (3)

security/v1/results access control hardening
Applies if you use /v1/results.
breakingThe pdf/html output default changed to file output
Applies if you use pdf/html output.
breakingThe push default changed to opt-in
Applies if you use push.

Daprv1.17.8Orchestration & ManagementMay 28, 2026

CHECK 1OTHER 1View full analysis

A maintenance release corrects a workflow retentioner defect and constrains forwarded-host handling during Sentry OIDC discovery. The discovery change affects deployments that use Sentry OIDC.

Check if affected (1)

securityConstrained X-Forwarded-Host use during Sentry OIDC discovery
Applies if you use Sentry OIDC.

SPIREv1.15.1SecurityMay 28, 2026

CHECK 1OTHER 2View full analysis

SPIRE v1.15.1 includes a security correction for Azure IMDS node attestation. The release also updates the golang.org/x/net and golang.org/x/crypto dependencies.

Check if affected (1)

securityAzure IMDS node attestation validation
Applies if you use the azure_imds server node attestor plugin.

SPIREv1.14.7SecurityMay 28, 2026

CHECK 1OTHER 2View full analysis

SPIRE v1.14.7 fixes a security vulnerability in Azure IMDS node attestation. It also updates the Go toolchain to 1.26.3 and updates three dependencies.

Check if affected (1)

securityThe azure_imds node attestor validation is corrected
Applies if you use the azure_imds server node attestor plugin.

Contourv1.33.5Networking & MessagingMay 28, 2026

ACTION 1CHECK 1OTHER 2View full analysis

A maintenance release with a security fix for invalid HTTPProxy configurations and an update to golang.org/x/net. It also updates the Go toolchain to 1.25.10 and is tested against Kubernetes 1.32 through 1.34.

Action needed (1)

securitycriticalgolang.org/x/net updated to v0.55.0, CVE-2026-39821
Contour v1.33.5 updates golang.org/x/net to v0.55.0. The change addresses CVE-2026-39821.

Check if affected (1)

securitymediumInvalid HTTPProxy configuration rejected, GHSA-g3xr-5w5j-w4q4
Applies if you configure HTTPProxy with a fallback certificate and enable JWT verification.

Prometheusv3.12.0ObservabilityMay 28, 2026

ACTION 1CHECK 3OTHER 45View full analysis

A feature and maintenance release with new operator-facing APIs, discovery integrations, feature flags, configuration options, and UI capabilities. It also addresses disclosed security issues, correctness and performance problems, and validation or constraint behavior.

Action needed (1)

breakingConcurrent fgprof profile rejection
The API rejects concurrent fgprof profiles.

Check if affected (3)

securityRemote Write decoded-length constraint
Applies if you use Remote Write.
securityPlaintext secret exposure in STACKIT SD
Applies if you use STACKIT SD.
breakingDecompressed body-size limit for OTLP write requests
Applies if you use OTLP.

OpenFGAv1.16.1SecurityMay 28, 2026

ACTION 1OTHER 3View full analysis

OpenFGA v1.16.1 includes a third-party dependency update for multiple CVEs in the Go standard library. It also corrects defects in the experimental weighted_graph_check behavior.

Action needed (1)

securityThe grpc-health-probe dependency update
grpc-health-probe is updated to v0.4.50 to address multiple CVEs in the Go standard library.

Argov3.3.11CI/CD & App DeliveryMay 28, 2026

ACTION 1OTHER 6View full analysis

Argo CD v3.3.11 contains bug fixes and a UI dependency update addressing CVE-2026-41240. The release concerns deployments using the affected UI dependency.

Action needed (1)

securitymediumThe redoc/dompurify dependency, updated to v3.4.0
The /ui dependency redoc/dompurify is updated to v3.4.0 to address CVE-2026-41240.

Argov3.4.3CI/CD & App DeliveryMay 28, 2026

CHECK 1OTHER 8View full analysis

A maintenance release with several correctness fixes across Argo CD and a UI dependency update addressing CVE-2026-41240. The recorded fixes cover CLI, UI, Git, controller startup, and resource handling.

Check if affected (1)

securitymediumThe redoc/dompurify dependency, upgraded for CVE-2026-41240
Applies if you use redoc/dompurify in /ui.

Rookv1.19.6Storage & DataMay 27, 2026

ACTION 1OTHER 8View full analysis

This release includes a security-related dependency update in CI. The change affects builds that use golang.org/x/net.

Action needed (1)

securitycriticalThe golang.org/x/net dependency, updated to v0.55.0
CI updates golang.org/x/net from its previous version to v0.55.0 to fix GO-2026-5026.

Flatcar Container Linuxstable-4593.2.2Provisioning & RuntimeMay 27, 2026

ACTION 1OTHER 2View full analysis

Flatcar stable-4593.2.2 is a maintenance release with Linux security fixes. It also updates Linux to 6.12.91 and ca-certificates to 3.124.

Action needed (1)

securitycriticalLinux security fixes
Linux security fixes for CVE-2024-36476, CVE-2024-39282, CVE-2024-53681, CVE-2024-54031, CVE-2024-57795, CVE-2024-57801, CVE-2024-57802, CVE-2024-57841, CVE-2024-57844, CVE-2024-57857, CVE-2024-57882, CVE-2024-57883, CVE-2024-57884, CVE-2024-57885, CVE-2024-57886, CVE-2024-57887, CVE-2024-57888, CVE-2024-57889, CVE-2024-57890, CVE-2024-57891, CVE-2024-57892, CVE-2024-57893, CVE-2024-57894, CVE-2024-57895, CVE-2024-57896, CVE-2024-57897, CVE-2024-57898, CVE-2024-57899, CVE-2024-57900, CVE-2024-57901, CVE-2024-57902, CVE-2024-57903, CVE-2024-57930, CVE-2024-57931, CVE-2024-57932, CVE-2024-57933, CVE-2024-57934, CVE-2024-57935, CVE-2024-57936, CVE-2024-57937, CVE-2024-57938, CVE-2024-58237, CVE-2025-21629, CVE-2025-21630, CVE-2026-43490, CVE-2026-43492, CVE-2026-43495, CVE-2026-43496, CVE-2026-43497, CVE-2026-43502, CVE-2026-43503, CVE-2026-46300, and CVE-2026-46333 ship in Flatcar stable-4593.2.2.

Flatcar Container Linuxlts-4081.3.8Provisioning & RuntimeMay 27, 2026

ACTION 1OTHER 1View full analysis

This Flatcar LTS release contains Linux security fixes identified by CVEs, plus ca-certificates and Linux component updates. It is most relevant to deployments tracking the lts-4081.3.8 release.

Action needed (1)

securitycriticalLinux security fixes for CVE-2026-43316
Linux receives security fixes associated with the listed CVEs, including CVE-2026-43316. The update ships in Flatcar LTS lts-4081.3.8.

Falco0.44.0SecurityMay 26, 2026

ACTION 1CHECK 5OTHER 34View full analysis

A release that removes several supported engines and outputs and restricts falco-webui access. It also adds rule and configuration capabilities, includes defect fixes and dependency updates, and discloses no security advisory.

Action needed (1)

breakinggRPC server support, removed
gRPC server support is removed in this release.

Check if affected (5)

securityPlugin library path traversal prevention
Applies if you configure the plugin library path.
breakingThe gRPC output, removed
Applies if you use the gRPC output.
breakingThe gVisor engine, removed
Applies if you use the gVisor engine.
+ 2 more on the release page

Crossplanev2.3.1Orchestration & ManagementMay 22, 2026

ACTION 1CHECK 13OTHER 1View full analysis

A maintenance release includes dependency updates and security fixes in golang.org/x/crypto. The fixes cover SSH, SSH agent, and known-hosts behavior.

Action needed (1)

securitygolang.org/x/crypto updated to v0.52.0
The release updates the golang.org/x/crypto module to v0.52.0.

Check if affected (13)

securitycriticalUnenforced invoking key constraints in golang.org/x/crypto/ssh/agent
Applies if you use golang.org/x/crypto/ssh/agent.
securitycriticalDropped invoking agent constraints in golang.org/x/crypto/ssh/agent
Applies if you use golang.org/x/crypto/ssh/agent.
securitycriticalServer deadlock on unexpected responses in golang.org/x/crypto/ssh
Applies if you use golang.org/x/crypto/ssh.
+ 10 more on the release page

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