AI-analyzed release notes for CNCF graduated and incubating projects.
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.
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.
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.
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.
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.
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.
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.
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.
The go-jose/go-jose dependency was updated to v4. to fix GHSA-78h2-9frx-2jm8, also identified as CVE-2026-34986.
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.
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.
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.
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. API, deprecated
Applies if you use shim..
shim. is deprecated in containerd 2.3.
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.
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.
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. v0.5.1 update
The release updates github. 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.
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.
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.
