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.
History

Mon, 29 Jun 2026 20:45:00 +0000

Type Values Removed Values Added
First Time appeared Podman-container-tools
Podman-container-tools podman
Vendors & Products Podman-container-tools
Podman-container-tools podman

Sat, 27 Jun 2026 03:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 26 Jun 2026 16:45:00 +0000

Type Values Removed Values Added
Description 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.
Title Podman: Malformed Image can trick podman run into leaking host environment variables into the container
Weaknesses CWE-200
CWE-668
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-06-26T16:29:02.092Z

Updated: 2026-06-27T02:41:58.574Z

Reserved: 2026-06-24T02:21:33.811Z

Link: CVE-2026-57231

cve-icon Vulnrichment

Updated: 2026-06-27T02:41:54.221Z

cve-icon NVD

No data.

cve-icon Redhat

No data.