CVE-2026-57231

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.

Score

CVSS 3.1 7.5 High

Status

Analyzed - security-advisories@github.com

Published

2026-06-26

Last modified

2026-10-25

Weaknesses

CWE-200, CWE-668

Affected products

• Podman (Podman-container-tools)
• Podman (Podman Project)

References

• https://github.com/podman-container-tools/podman/security/advisories/GHSA-4hq8-gpf5-8p68
• https://github.com/podman-container-tools/podman/commit/6c431b73dbf8e4b20b778644d7a80caebdb75050