CVE-2026-57231 — Podman: Malformed Image can trick podman run into leaking host environment variables into the container
Podman is a tool for managing OCI containers and pods. From 1.8.1 until 5.8.4, a container image that contains a environment variable with just a key and no value can trick podm…
Published: 2026-06-26 · CVSS: 7.5 · CVSS 3.1
Podman is a tool for managing OCI containers and pods. From 1.8.1 until 5.8.4, a container image that contains a environment variable with just a key and no value can trick podman into passing that variable from the host into the container. This is made worse by the fact that using an asterisk (*) will cause podman to pass all host variables into the container. So essentially a malicious image can exfiltrate all podman environment variables that are set in the session from where the container is launched. This vulnerability is fixed in 5.8.4 and 6.0.0.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7