{"id":"GHSA-cvxm-645q-p574","revision":null,"records":[{"revision":"58efbfd05e7d45ce81cf45840218a146","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-50195","aliases":[],"title":"containerd: CRI checkpoint import allows local image tag poisoning","description":"containerd is an open-source container runtime. Versions prior to 2.3.2, 2.2.5 and 2.1.9 contain a vulnerability in the CRI checkpoint import process where it fails to validate the image references specified within a checkpoint image's configuration. An attacker with permissions to create pods can use a crafted checkpoint image to force containerd to pull a malicious image and assign it an arbitrary local tag, thereby poisoning the node's local image cache. Subsequently, if other pods on the same node attempt to use the poisoned tag with an IfNotPresent (or Never) pull policy, they will unknowingly execute the attacker's malicious image instead of the legitimate one. 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This can lead to a compromise of the affected pods, allowing the attacker to execute arbitrary code under the victim pod's identity. 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Versions prior to 2.3.2, 2.2.5 and 2.1.9 contain a vulnerability in the CRI checkpoint import process where it fails to validate the image references specified within a checkpoint image's configuration. An attacker with permissions to create pods can use a crafted checkpoint image to force containerd to pull a malicious image and assign it an arbitrary local tag, thereby poisoning the node's local image cache. Subsequently, if other pods on the same node attempt to use the poisoned tag with an IfNotPresent (or Never) pull policy, they will unknowingly execute the attacker's malicious image instead of the legitimate one. This can lead to a compromise of the affected pods, allowing the attacker to execute arbitrary code under the victim pod's identity. 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Subsequently, if other pods on the same node attempt to use the poisoned tag with an `IfNotPresent` (or `Never`) pull policy, they will unknowingly execute the attacker's malicious image instead of the legitimate one. This can lead to a compromise of the affected pods, allowing the attacker to execute arbitrary code under the victim pod's identity.\n\n## Patches\nThis bug has been fixed in the following containerd versions:\n\n* 2.3.2\n* 2.2.5\n* 2.1.9\n\nUsers should update to these versions to resolve the issue.\n## Workarounds\nUsers should only allow trusted images to be pulled.\n\n## Credits\nThe containerd project would like to thank Henry Beberman (@hbeberman) of Microsoft, the GKE Security Team using Gemini, Anthropic Research, in collaboration with Claude, and Robert Prast (@robertprast) who independently discovered and responsibly disclosed this issue in accordance with the [containerd security policy](https://github.com/containerd/project/blob/main/SECURITY.md).\n\n## For more information\nIf you have any questions or comments about this advisory:\n\n* Open an issue in [containerd](https://github.com/containerd/containerd/issues/new/choose)\n* Email us at [security@containerd.io](mailto:security@containerd.io)\n\nTo report a security issue in containerd:\n* [Report a new vulnerability](https://github.com/containerd/containerd/security/advisories/new)\n* Email us at [security@containerd.io](mailto:security@containerd.io)","state":0,"publishedAt":"2026-06-19T19:35:23+00:00","modifiedAt":"2026-09-10T03:50:49.2786042+00:00","affected":[{"ecosystem":"Go","name":"github.com/containerd/containerd/v2","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"2.1.0"},{"kind":"fixed","version":"2.1.9"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"Go","name":"github.com/containerd/containerd/v2","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"2.2.0"},{"kind":"fixed","version":"2.2.5"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"Go","name":"github.com/containerd/containerd/v2","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"2.3.0"},{"kind":"fixed","version":"2.3.2"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","score":null,"severity":null},{"system":"CVSS_V4","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:H/SI:H/SA:L","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"MODERATE"}],"references":["https://github.com/containerd/containerd/security/advisories/GHSA-cvxm-645q-p574","https://nvd.nist.gov/vuln/detail/CVE-2026-50195","https://github.com/containerd/containerd"],"sourceUrl":"https://github.com/advisories/GHSA-cvxm-645q-p574","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-cvxm-645q-p574","identifiers":["GHSA-cvxm-645q-p574","CVE-2026-50195","GO-2026-5338"]},"retained":false,"historicalAffected":[]},{"revision":"0bb7c2fa12c84798a5617b0cd347c40e","observedAt":"2026-10-24T13:19:41.952+00:00","statement":{"source":"osv","id":"GO-2026-5338","aliases":["CVE-2026-50195","GHSA-cvxm-645q-p574"],"title":"containerd: CRI checkpoint import allows local image tag poisoning in github.com/containerd/containerd","description":"containerd: CRI checkpoint import allows local image tag poisoning in github.com/containerd/containerd","state":0,"publishedAt":"2026-06-25T18:43:19+00:00","modifiedAt":"2026-06-26T15:44:22.7937838+00:00","affected":[{"ecosystem":"Go","name":"github.com/containerd/containerd","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"Go","name":"github.com/containerd/containerd/v2","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"2.1.0"},{"kind":"fixed","version":"2.1.9"},{"kind":"introduced","version":"2.2.0"},{"kind":"fixed","version":"2.2.5"},{"kind":"introduced","version":"2.3.0"},{"kind":"fixed","version":"2.3.2"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[],"references":["https://github.com/containerd/containerd/security/advisories/GHSA-cvxm-645q-p574"],"sourceUrl":"https://osv.dev/vulnerability/GO-2026-5338","license":"OSV · upstream source license applies","key":"osv:GO-2026-5338","identifiers":["GO-2026-5338","CVE-2026-50195","GHSA-cvxm-645q-p574"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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