What is CVE-2026-57231?

CVE-2026-57231 is a high-severity vulnerability in Podman-container-tools Podman, classified under Information Disclosure. CVSS score: 7.5/10. Published 2026-06-26.

How severe is CVE-2026-57231?

High severity. CVSS v3 base score is 7.5 out of 10.

Information disclosure in Podman-container-tools Podman

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…

Vulnerability class: Information Disclosure

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Podman-container-tools Podman — versions >= 1.8.1, < 5.8.4

Weakness classification (CWE)

CWE-200 — Information Disclosure
CWE-668 — Exposure of Resource to Wrong Sphere

References

security-advisories@github.com (x_refsource_CONFIRM)
security-advisories@github.com (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-57231?: CVE-2026-57231 is a high-severity vulnerability in Podman-container-tools Podman, classified under Information Disclosure. CVSS score: 7.5/10. Published 2026-06-26.
How severe is CVE-2026-57231?: High severity. CVSS v3 base score is 7.5 out of 10.