Podman: untrusted image labels allow auto-update to restart arbitrary systemd units
Historical advisory recorded 13 Nov 2026 14:56:54 UTC. Read the latest advisory.
cve-program · CVE-2026-121885
PublishedA 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.
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cve-program · CVE-2026-121885
PublishedPodman: untrusted image labels allow auto-update to restart arbitrary systemd units
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.
- Source published
- 10 Nov 2026 14:34:31 UTC
- Source modified
- 13 Nov 2026 13:32:49 UTC
- Saved here
- 13 Nov 2026 14:56:54 UTC
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- CVE Program Terms of Use
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CVSS 3.1 · 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H