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From: Salvatore Bonaccorso <carnil@debian.org>
To: Debian Bug Tracking System <submit@bugs.debian.org>
Subject: podman: CVE-2026-57231
Message-ID: <178326452528.3091874.8508908703255863369.reportbug@eldamar.lan>
X-Mailer: reportbug 13.2.0+nmu1
Date: Sun, 05 Jul 2026 17:15:25 +0200
Delivered-To: submit@bugs.debian.org

Source: podman
Version: 5.8.3+ds1-1
Severity: important
Tags: security upstream
X-Debbugs-Cc: carnil@debian.org, Debian Security Team <team@security.debian.org>

Hi,

The following vulnerability was published for podman.

CVE-2026-57231[0]:
| 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.


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2026-57231
    https://www.cve.org/CVERecord?id=CVE-2026-57231
[1] https://github.com/podman-container-tools/podman/security/advisories/GHSA-4hq8-gpf5-8p68
[2] https://github.com/podman-container-tools/podman/commit/85832029d537c2c0df89e47d4a03d55ba099a848

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore
]