{"id":"CVE-2026-53493","summary":"Containerd has image-pull DoS via crafted OCI index graph amplification","details":"containerd is an open-source container runtime. Prior to versions 1.7.36, 2.0.13, 2.2.9, 2.3.6, and 2.4.1, a crafted OCI index graph can force very high CPU/memory usage during PullImage (before container start), causing long ContainerCreating stalls and, at larger sizes, node/runtime instability. Versions 1.7.36, 2.0.13, 2.2.9, 2.3.6, and 2.4.1 fix the issue.","aliases":["GHSA-pg57-6jwg-q645"],"modified":"2026-09-26T03:30:43.555388960Z","published":"2026-09-25T00:06:43.298Z","database_specific":{"unresolved_ranges":[{"extracted_events":[{"introduced":"2.0.0"},{"fixed":"2.0.13"},{"fixed":"1.7.36"},{"introduced":"2.1.0"},{"fixed":"2.2.9"},{"introduced":"2.3.0"},{"fixed":"2.3.6"}],"source":"AFFECTED_FIELD"}],"cna_assigner":"GitHub_M","cwe_ids":["CWE-400","CWE-770","CWE-834"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53493.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53493.json"},{"type":"ADVISORY","url":"https://github.com/containerd/containerd/security/advisories/GHSA-pg57-6jwg-q645"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53493"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/containerd/containerd","events":[{"introduced":"a7fe631d96c08fb14cf8eff0afdc280e99c30a94"},{"last_affected":"a7fe631d96c08fb14cf8eff0afdc280e99c30a94"}],"database_specific":{"extracted_events":[{"introduced":"= 2.4.0"},{"last_affected":"= 2.4.0"}],"source":"AFFECTED_FIELD"}}],"versions":["= 2.4.0","v2.4.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53493.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N"}]}