{"id":"UBUNTU-CVE-2026-53493","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.","modified":"2026-09-25T17:45:10.990409065Z","published":"2026-09-25T00:00:00Z","upstream":["CVE-2026-53493"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-53493"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-53493"},{"type":"REPORT","url":"https://github.com/containerd/containerd/security/advisories/GHSA-pg57-6jwg-q645"}],"affected":[{"package":{"name":"containerd","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/containerd?arch=source&distro=esm-apps-legacy%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.2.1-0ubuntu4~16.04","0.2.3-0ubuntu1~16.04","0.2.5-0ubuntu1~16.04.1","1.2.6-0ubuntu1~16.04.2","1.2.6-0ubuntu1~16.04.3","1.2.6-0ubuntu1~16.04.4","1.2.6-0ubuntu1~16.04.5","1.2.6-0ubuntu1~16.04.6","1.2.6-0ubuntu1~16.04.6+esm1","1.2.6-0ubuntu1~16.04.6+esm2","1.2.6-0ubuntu1~16.04.6+esm4","1.2.6-0ubuntu1~16.04.6+esm5","1.2.6-0ubuntu1~16.04.6+esm6","1.2.6-0ubuntu1~16.04.6+esm7"],"ecosystem_specific":{"binaries":[{"binary_name":"containerd","binary_version":"1.2.6-0ubuntu1~16.04.6+esm7"},{"binary_name":"golang-github-docker-containerd-dev","binary_version":"1.2.6-0ubuntu1~16.04.6+esm7"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-53493.json"}},{"package":{"name":"containerd","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/containerd?arch=source&distro=esm-apps%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.2.5-0ubuntu2","1.2.6-0ubuntu1~18.04.1","1.2.6-0ubuntu1~18.04.2","1.3.3-0ubuntu1~18.04.1","1.3.3-0ubuntu1~18.04.2","1.3.3-0ubuntu1~18.04.3","1.3.3-0ubuntu1~18.04.4","1.4.4-0ubuntu1~18.04.2","1.5.2-0ubuntu1~18.04.1","1.5.2-0ubuntu1~18.04.2","1.5.2-0ubuntu1~18.04.3","1.5.5-0ubuntu3~18.04.1","1.5.5-0ubuntu3~18.04.2","1.5.9-0ubuntu1~18.04.1","1.5.9-0ubuntu1~18.04.2","1.6.12-0ubuntu1~18.04.1","1.6.12-0ubuntu1~18.04.1+esm1","1.6.12-0ubuntu1~18.04.1+esm2","1.6.12-0ubuntu1~18.04.1+esm3","1.6.12-0ubuntu1~18.04.1+esm4"],"ecosystem_specific":{"binaries":[{"binary_name":"containerd","binary_version":"1.6.12-0ubuntu1~18.04.1+esm4"},{"binary_version":"1.6.12-0ubuntu1~18.04.1+esm4","binary_name":"golang-github-containerd-containerd-dev"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-53493.json"}},{"package":{"name":"containerd","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/containerd?arch=source&distro=esm-infra%2Ffocal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.2.10-0ubuntu1","1.3.2-0ubuntu1","1.3.3-0ubuntu1","1.3.3-0ubuntu2","1.3.3-0ubuntu2.1","1.3.3-0ubuntu2.2","1.3.3-0ubuntu2.3","1.4.4-0ubuntu1~20.04.2","1.5.2-0ubuntu1~20.04.1","1.5.2-0ubuntu1~20.04.2","1.5.2-0ubuntu1~20.04.3","1.5.5-0ubuntu3~20.04.1","1.5.5-0ubuntu3~20.04.2","1.5.9-0ubuntu1~20.04.1","1.5.9-0ubuntu1~20.04.4","1.5.9-0ubuntu1~20.04.5","1.5.9-0ubuntu1~20.04.6","1.6.12-0ubuntu1~20.04.1","1.6.12-0ubuntu1~20.04.3","1.6.12-0ubuntu1~20.04.5","1.6.12-0ubuntu1~20.04.6","1.6.12-0ubuntu1~20.04.7","1.6.12-0ubuntu1~20.04.8","1.6.12-0ubuntu1~20.04.8+esm1","1.6.12-0ubuntu1~20.04.8+esm2"],"ecosystem_specific":{"binaries":[{"binary_name":"golang-github-containerd-containerd-dev","binary_version":"1.6.12-0ubuntu1~20.04.8+esm2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-53493.json"}},{"package":{"name":"containerd-app","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/containerd-app?arch=source&distro=esm-apps%2Ffocal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.7.2-0ubuntu1~20.04.1","1.7.12-0ubuntu2~20.04.1","1.7.24-0ubuntu1~20.04.1","1.7.24-0ubuntu1~20.04.2","1.7.24-0ubuntu1~20.04.2+esm1","1.7.24-0ubuntu1~20.04.2+esm2"],"ecosystem_specific":{"binaries":[{"binary_name":"containerd","binary_version":"1.7.24-0ubuntu1~20.04.2+esm2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-53493.json"}},{"package":{"name":"containerd","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/containerd?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.5.5-0ubuntu3","1.5.9-0ubuntu1","1.5.9-0ubuntu2","1.5.9-0ubuntu3","1.5.9-0ubuntu3.1","1.6.12-0ubuntu1~22.04.1","1.6.12-0ubuntu1~22.04.3","1.6.12-0ubuntu1~22.04.5","1.6.12-0ubuntu1~22.04.6","1.6.12-0ubuntu1~22.04.7","1.6.12-0ubuntu1~22.04.8","1.6.12-0ubuntu1~22.04.9","1.6.12-0ubuntu1~22.04.10","1.6.12-0ubuntu1~22.04.11"],"ecosystem_specific":{"binaries":[{"binary_name":"golang-github-containerd-containerd-dev","binary_version":"1.6.12-0ubuntu1~22.04.11"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-53493.json"}},{"package":{"name":"containerd-app","ecosystem":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