{"id":"UBUNTU-CVE-2026-46680","details":"containerd is an open-source container runtime. In versions prior to 1.7.32, 2.0.9, 2.2.4 and 2.3.1, containers launched with a numeric User directive that cannot be parsed as a 32-bit integer are incorrectly treated as a username, leading to runAsNonRoot evasion. If a crafted image provides an /etc/passwd file mapping this large numeric string to root, the container ultimately runs as root (UID 0). This allows the Kubernetes runAsNonRoot restriction to be bypassed, causing unexpected behavior for environments that require containers to run as a non-root user. This issue has been fixed in versions 1.7.32, 2.0.9, 2.2.4 and 2.3.1.","modified":"2026-07-09T15:20:03Z","published":"2026-07-01T18:16:00Z","upstream":["CVE-2026-46680"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-46680"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-46680"},{"type":"REPORT","url":"https://github.com/containerd/containerd/security/advisories/GHSA-fqw6-gf59-qr4w"}],"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-2026-46680.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_name":"golang-github-containerd-containerd-dev","binary_version":"1.6.12-0ubuntu1~18.04.1+esm4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-46680.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_version":"1.6.12-0ubuntu1~20.04.8+esm2","binary_name":"golang-github-containerd-containerd-dev"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-46680.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-2026-46680.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-2026-46680.json"}},{"package":{"name":"containerd-app","ecosystem":"Ubuntu:Pr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