{"id":"CVE-2026-121885","aliases":["AZL-113342","EUVD-2026-121147","GHSA-7fhf-8vg3-7vrp","UBUNTU-CVE-2026-121885"],"status":"published","title":"Podman: untrusted image labels allow auto-update to restart arbitrary systemd units","description":"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.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00379,"percentile":0.32386,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-807"],"published":"2026-11-10T14:34:31Z","modified":"2026-11-12T23:46:12Z","affected":[{"source":"osv","ecosystem":"Azure Linux:3","package":"podman","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"5.6.1-10"}]}]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"podman","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"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"podman","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.4.2+ds1-2","5.7.0+ds2-3","5.7.0+ds2-3build1"]}],"products":[{"vendor":"red hat","product":"red hat enterprise linux 10"},{"vendor":"red hat","product":"red hat enterprise linux 8"},{"vendor":"red hat","product":"red hat enterprise linux 9"},{"vendor":"red hat","product":"red hat hardened images"},{"vendor":"red hat","product":"red hat openshift container platform 4"}],"references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-121885","tags":["vdb-entry","x_refsource_REDHAT","report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2566844","tags":["issue-tracking","x_refsource_REDHAT","report"]},{"url":"https://github.com/podman-container-tools/podman/security/advisories/GHSA-55rm-rwr7-q2wr","tags":["report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-121885","tags":["web"]},{"url":"https://github.com/advisories/GHSA-7fhf-8vg3-7vrp"},{"url":"https://ubuntu.com/security/CVE-2026-121885","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-121885","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-121885","title":"Podman: untrusted image labels allow auto-update to restart arbitrary systemd units","description":"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.","status":"published","published":"2026-11-10T14:34:31.734Z","modified":"2026-11-11T08:05:52.838Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-807"],"updated_at":"2026-11-11T08:55:26.475031Z"}],"euvd":[{"id":"EUVD-2026-121147","description":"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.","status":"published","published":"2026-11-10T14:34:31Z","modified":"2026-11-11T08:05:52Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-11T08:27:50.93075Z"}],"ghsa":[{"id":"GHSA-7fhf-8vg3-7vrp","title":"A flaw was found in Podman. An attacker can trigger a Denial of Service (DoS) by supplying a...","description":"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.","status":"published","published":"2026-11-10T15:33:37Z","modified":"2026-11-11T09:32:31Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-807"],"updated_at":"2026-11-11T09:33:11.21985Z"}],"nvd":[{"id":"CVE-2026-121885","description":"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.","status":"published","published":"2026-11-10T15:17:15.88Z","modified":"2026-11-11T08:17:17.56Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-807"],"updated_at":"2026-11-11T12:24:44.52544Z"}],"osv":[{"id":"AZL-113342","title":"CVE-2026-121885 affecting package podman 5.6.1-10","description":"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.","status":"published","published":"2026-11-10T15:17:15Z","modified":"2026-11-12T14:17:04.825232032Z","updated_at":"2026-11-12T14:53:16.116152Z"},{"id":"UBUNTU-CVE-2026-121885","description":"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.","status":"published","published":"2026-11-12T00:00:00Z","modified":"2026-11-12T23:46:12.215698061Z","updated_at":"2026-11-13T00:19:56.368987Z"}]}}