{"id":"UBUNTU-CVE-2026-121885","details":"A flaw was found in Podman. An attacker can trigger a Denial of Service (DoS) by supplying a container image containing crafted metadata labels. Podman's auto-update mechanism improperly trusts these image labels to determine which system services to restart. If a user runs the malicious container and auto-update processes it, arbitrary system services are restarted with the user's privileges, potentially allowing an attacker to shut down the host system when Podman runs with administrative privileges.","modified":"2026-11-12T23:46:12.215698061Z","published":"2026-11-12T00:00:00Z","upstream":["CVE-2026-121885"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-121885"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-121885"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-121885"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2566844"},{"type":"REPORT","url":"https://github.com/podman-container-tools/podman/security/advisories/GHSA-55rm-rwr7-q2wr"}],"affected":[{"package":{"name":"podman","ecosystem":"Ubuntu:26.10","purl":"pkg:deb/ubuntu/podman?arch=source&distro=stonking"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.7.0+ds2-3build1","5.8.3+ds1-1","5.8.4+ds1-1","5.8.6+ds1-2"],"ecosystem_specific":{"binaries":[{"binary_name":"podman","binary_version":"5.8.6+ds1-2"},{"binary_version":"5.8.6+ds1-2","binary_name":"podman-docker"},{"binary_version":"5.8.6+ds1-2","binary_name":"podman-remote"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-121885.json"}},{"package":{"name":"podman","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/podman?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.4.2+ds1-2","5.7.0+ds2-3","5.7.0+ds2-3build1"],"ecosystem_specific":{"binaries":[{"binary_version":"5.7.0+ds2-3build1","binary_name":"podman"},{"binary_version":"5.7.0+ds2-3build1","binary_name":"podman-docker"},{"binary_name":"podman-remote","binary_version":"5.7.0+ds2-3build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-121885.json"}}],"schema_version":"1.9.2","severity":[{"type":"Ubuntu","score":"medium"}]}