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

Project: containerdClear ×

containerdv2.2.7Kubernetes CoreAug 12, 2026

CHECK 3PLAN 1OTHER 5View full analysis

A container runtime and CRI release that changes checkpoint-restore defaults and lifecycle, adds CRIU and Windows log-scrubbing configuration, and expands runtime support. It also includes fixes for CRI environment handling and mount-manager activation, plus dependency manifest updates that are not operator-facing.

Check if affected (3)

breakingThe enable_experimental_restore_via_create default
Applies if you use CreateContainer.
The CRI disables enable_experimental_restore_via_create by default in CreateContainer.
breakingThe ScrubLogs default on Windows
Applies if you run on Windows.
ScrubLogs is enabled by default for Windows.
breakingCheckpoint restore without CRIU
Applies if you do not have CRIU installed.
The checkpoint restore code path is disabled when CRIU is not installed.

Plan ahead (1)

deprecatedRestore in CreateContainer, deprecated
Applies if you use CreateContainer.
The CRI deprecates restore in CreateContainer.

containerdv2.3.4Kubernetes CoreAug 12, 2026

CHECK 3PLAN 1OTHER 11View full analysis

A container runtime release with changes to CRI behavior, checkpoint restore handling, and configuration. It also adds CRI capabilities and fixes runtime and snapshotter defects.

Check if affected (3)

breakingCheckpoint restore in CreateContainer disabled by default
Applies if you set enable_experimental_restore_via_create.
Checkpoint restore in CreateContainer is disabled by default. The enable_experimental_restore_via_create configuration option enables it.
breakingruntimeFeatures.UserNamespacesHostNetwork enabled by default
Applies if you run CRI.
CRI sets runtimeFeatures.UserNamespacesHostNetwork to true by default.
breakingLog scrubbing enabled by default on Windows
Applies if you run Windows.
Log scrubbing is enabled by default on Windows.

Plan ahead (1)

deprecatedCheckpoint restore in CreateContainer deprecated
Applies if you use CreateContainer.
Checkpoint restore through CreateContainer is deprecated.

containerdv2.3.3Kubernetes CoreJul 10, 2026

CHECK 2OTHER 7View full analysis

A maintenance release with an enforced CRI constraint, aligned erofs defaults, correctness and behavior fixes, and dependency updates. It contains no security advisories or explicitly described vulnerabilities.

Check if affected (2)

breakingThe CreateContainer constraint for stopped sandboxes
Applies if you use CreateContainer when the sandbox is not running.
CRI rejects CreateContainer when the sandbox is not running.
breakingThe erofs default mkfs block size
Applies if you use erofs across platforms.
The default erofs mkfs block size is aligned across platforms.

containerdv2.2.6Kubernetes CoreJul 9, 2026

ACTION 1OTHER 3View full analysis

A maintenance release with CRI and image-distribution fixes. The CRI constraint on CreateContainer requests may require action, while the other fixes take effect through the upgrade.

Action needed (1)

breakingCreateContainer rejection for stopped sandboxes
The CRI now rejects CreateContainer requests when the sandbox is not running. This constraint ships in containerd v2.2.6.

containerdv2.0.11Kubernetes CoreJul 9, 2026

OTHER 2View full analysis

containerd v2.0.11 fixes content storage pollution by limiting the fallback used during reference resolution. It also updates the Go toolchain to 1.26.5 and 1.25.12.

containerdv1.7.34Kubernetes CoreJul 9, 2026

OTHER 9View full analysis

containerd v1.7.34 fixes a CRI event-loss defect and updates the Go toolchain. It also upgrades several golang.org/x dependencies.

containerdv2.1.9Kubernetes CoreJun 18, 2026

ACTION 5OTHER 7View full analysis

containerd v2.1.9 includes security fixes alongside checkpoint-restore and image-label behavior changes, plus updates to bundled runc and the Go toolchain. The security fixes require the v2.1.9 release, while the other changes matter when their affected behavior is in use.

Action needed (5)

securitycriticalCVE-2026-53488 security fix
The CVE-2026-53488 security issue is corrected in containerd v2.1.9 and is tracked as GHSA-xhf5-7wjv-pqxp.
securityhighCVE-2026-53492 security fix
The CVE-2026-53492 security issue is corrected in containerd v2.1.9 and is tracked as GHSA-33vj-92qq-66hc.
securityhighCVE-2026-53489 security fix
The CVE-2026-53489 security issue is corrected in containerd v2.1.9 and is tracked as GHSA-rgh6-rfwx-v388.
securitymediumCVE-2026-50195 security fix
The CVE-2026-50195 security issue is corrected in containerd v2.1.9 and is tracked as GHSA-cvxm-645q-p574.
securitymediumCVE-2026-47262 security fix
The CVE-2026-47262 security issue is corrected in containerd v2.1.9 and is tracked as GHSA-jpcc-p29g-p8mq.

containerdv1.7.33Kubernetes CoreJun 18, 2026

ACTION 2OTHER 4View full analysis

containerd v1.7.33 includes security updates for containerd and go-jose, along with runtime and toolchain dependency updates. It also changes file-read bounds and image-config label propagation.

Action needed (2)

securitycriticalcontainerd security updates for CVE-2026-53488 and CVE-2026-47262
containerd ships security updates associated with CVE-2026-53488 and CVE-2026-47262. The release also includes GHSA-jpcc-p29g-p8mq and GHSA-xhf5-7wjv-pqxp.
securityhighgo-jose/go-jose/v3 updated to v3.0.5
go-jose/go-jose/v3 is updated to v3.0.5 to fix GHSA-78h2-9frx-2jm8 and CVE-2026-34986.

containerdv2.0.10Kubernetes CoreJun 18, 2026

ACTION 1OTHER 4View full analysis

This release includes containerd security changes, behavior changes, and updates to the bundled runc binary and Go toolchain. The security advisories and runtime updates concern deployments that use the affected container runtime components.

Action needed (1)

securitycriticalcontainerd security fixes, including CVE-2026-53488
The containerd change is associated with CVE-2026-53488, CVE-2026-47262, GHSA-jpcc-p29g-p8mq, and GHSA-xhf5-7wjv-pqxp.

containerdv2.3.2Kubernetes CoreJun 18, 2026

ACTION 1OTHER 11View full analysis

containerd v2.3.2 is a maintenance release with disclosed security fixes, correctness and behavior changes, and dependency and toolchain updates. The security fixes are the main concern for operators, while the other changes matter where the affected behavior is in use.

Action needed (1)

securitycriticalThe containerd security fixes
containerd v2.3.2 includes a security fix identified as CVE-2026-50195 and associated with CVE-2026-47262, CVE-2026-53488, CVE-2026-53489, CVE-2026-53492, GHSA-33vj-92qq-66hc, GHSA-cvxm-645q-p574, GHSA-jpcc-p29g-p8mq, GHSA-rgh6-rfwx-v388, and GHSA-xhf5-7wjv-pqxp.

containerdv2.2.5Kubernetes CoreJun 18, 2026

ACTION 2OTHER 7View full analysis

A maintenance release with disclosed security fixes, dependency and toolchain updates, and changes to checkpoint and image-processing behavior. User-database reads are bounded in openUserFile, which may reject inputs that previously worked.

Action needed (2)

securitycriticalSecurity fixes for five disclosed CVEs
The release includes fixes for CVE-2026-50195, CVE-2026-53488, CVE-2026-53492, CVE-2026-53489, and CVE-2026-47262, along with the associated GHSA-33vj-92qq-66hc, GHSA-cvxm-645q-p574, GHSA-jpcc-p29g-p8mq, GHSA-rgh6-rfwx-v388, and GHSA-xhf5-7wjv-pqxp advisories.
breakingBounded openUserFile user-database reads
User-database file reads in openUserFile are now bounded, so inputs that previously worked may be rejected.

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.

containerdv2.2.4Kubernetes CoreMay 20, 2026

ACTION 2OTHER 8View full analysis

A maintenance release with security updates, including a dependency update tied to an advisory. It also includes compatibility and runtime changes across storage, policy, sandbox, validation, and toolchain areas.

Action needed (2)

securityhighCVE-2026-46680 security update
The release records CVE-2026-46680, also identified as GHSA-fqw6-gf59-qr4w, as a security update in containerd.
securityhighgo-jose/go-jose updated to v4.1.4
The go-jose/go-jose dependency was updated to v4.1.4 to fix GHSA-78h2-9frx-2jm8, also identified as CVE-2026-34986.

containerdv2.0.9Kubernetes CoreMay 20, 2026

ACTION 1CHECK 1OTHER 7View full analysis

A maintenance release with a disclosed security fix, a narrower default socket policy, expanded compatibility for volatile mount options and AppArmor, and several correctness fixes. It also includes updates to container event handling, tar extraction, OCI USER validation, sandbox field forwarding, and event topics.

Action needed (1)

securityhighThe CVE-2026-46680 security fix
A security fix for CVE-2026-46680, also identified as GHSA-fqw6-gf59-qr4w, ships in this release.

Check if affected (1)

breakingThe default seccomp socket policy
Applies if you use seccomp.
The default socket policy blocks AF_ALG in this release.

containerdv1.7.32Kubernetes CoreMay 20, 2026

ACTION 1OTHER 5View full analysis

containerd v1.7.32 includes a disclosed security advisory alongside correctness and compatibility fixes. The release concerns users assessing security exposure or changes in runtime and configuration behavior.

Action needed (1)

securityhighCVE-2026-46680 security fix
containerd v1.7.32 includes a fix associated with CVE-2026-46680 and GHSA-fqw6-gf59-qr4w.

containerdv2.3.1Kubernetes CoreMay 20, 2026

ACTION 1CHECK 1PLAN 1OTHER 8View full analysis

A maintenance release focused on runtime correctness and security, including fixes across snapshotter, storage, and server components. It also contains compatibility changes and updates to the API and Go toolchain.

Action needed (1)

securityhighCVE-2026-46680 correction
The fix for CVE-2026-46680 ships in this release.

Check if affected (1)

breakingThe overlayfs "rebase" capability, disabled in user namespaces
Applies if you use overlayfs and run in a user namespace.
The overlayfs "rebase" capability is disabled when running in a user namespace.

Plan ahead (1)

deprecatedTask fields in Runc options, deprecated
Applies if you configure task fields in Runc options.
Task fields in Runc options are deprecated in this release.

containerdapi/v1.11.1Kubernetes CoreMay 20, 2026

OTHER 1View full analysis

This containerd release corrects a defect in sandbox task API endpoints for non-runc runtimes. The recorded release material identifies the fix in the highlights and overview.

containerdv2.3.0Kubernetes CoreApr 30, 2026

ACTION 1PLAN 1OTHER 41View full analysis

A substantial operator-facing release with new capabilities, behavior changes, a compatibility constraint, and a deprecation. It is the first annual LTS release under a Kubernetes-aligned cadence, with support planned for at least two years.

Action needed (1)

breakingPlugin names disallow commas
OCI hook adjustments accumulate owners, and commas are disallowed in plugin names in this release.

Plan ahead (1)

deprecatedThe shim.Command API, deprecated
Applies if you use shim.Command.
shim.Command is deprecated in containerd 2.3.

containerdapi/v1.11.0Kubernetes CoreApr 30, 2026

CHECK 1OTHER 6View full analysis

This release adds and changes API and runtime capabilities, removes a sandbox metadata field, and updates a dependency. No security advisories or vulnerabilities are disclosed.

Check if affected (1)

breakingThe Container sandbox metadata field, removed
Applies if you use Container in API specs.
The Container field is removed from sandbox metadata in API v1.11.0.

containerdv2.2.3Kubernetes CoreApr 14, 2026

ACTION 1OTHER 14View full analysis

containerd v2.2.3 includes a disclosed security-related update to spdystream, alongside correctness, runtime, extraction, and dependency/toolchain changes. The recorded advisory is CVE-2026-35469.

Action needed (1)

securityhighspdystream dependency update for CVE-2026-35469
The spdystream dependency is updated in containerd v2.2.3 in connection with CVE-2026-35469.

containerdv2.0.8Kubernetes CoreApr 14, 2026

ACTION 1CHECK 1OTHER 4View full analysis

containerd v2.0.8 is a maintenance release with security fixes, a CNI restart correction, and dependency and toolchain updates. The security changes concern spdystream and credential handling in CRI pod events.

Action needed (1)

securityhighThe spdystream update for CVE-2026-35469
The spdystream security update for CVE-2026-35469 ships in containerd v2.0.8.

Check if affected (1)

securityCredential sanitization before gRPC returns
Applies if you use pod events through the Container Runtime Interface (CRI).
The Container Runtime Interface (CRI) path sanitizes errors before gRPC returns them, preventing credential leaks in pod events. The correction ships in containerd v2.0.8.

containerdv2.1.7Kubernetes CoreApr 14, 2026

ACTION 2CHECK 1OTHER 14View full analysis

A maintenance release with fixes across CRI, runtime, image distribution, and security-sensitive paths. It also updates dependencies and toolchains, including a spdystream security update and a fix for credential leakage.

Action needed (2)

securityhighCVE-2026-35469 and GHSA-pc3f-x583-g7j2
The release includes CVE-2026-35469 and GHSA-pc3f-x583-g7j2, related to the spdystream security fix.
securityhighgithub.com/moby/spdystream v0.5.1 update
The release updates github.com/moby/spdystream to v0.5.1. The update carries fixes associated with CVE-2026-35469 and GHSA-pc3f-x583-g7j2.

Check if affected (1)

securityCredential sanitization before gRPC returns
Applies if pod events are used.
The release sanitizes errors before returning them over gRPC to prevent credential leakage in pod events.

containerdv1.7.31Kubernetes CoreApr 14, 2026

ACTION 1CHECK 1OTHER 9View full analysis

containerd v1.7.31 is a maintenance release with a disclosed security fix in spdystream, alongside dependency, toolchain, correctness, and behavior updates. The spdystream fix requires upgrading; the other changes matter when affected behaviors or versions are in use.

Action needed (1)

securityhighThe spdystream CVE-2026-35469 fix
containerd v1.7.31 includes the spdystream fix for CVE-2026-35469 and GHSA-pc3f-x583-g7j2.

Check if affected (1)

securitySanitized gRPC errors in pod events
Applies if you use pod events.
containerd v1.7.31 sanitizes errors before returning them through gRPC. The change addresses credential leakage in pod events.

containerdv2.2.2Kubernetes CoreMar 10, 2026

ACTION 1OTHER 14View full analysis

A maintenance release with defect corrections, behavior changes, and a fix for credential leakage in pod events. It also updates the Go toolchain and adds a warning for concurrent container creation.

Action needed (1)

securityCredential leakage prevention in pod events
Credential leakage is prevented in pod events in this containerd release.

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