CVE-2025-4953 (CVSS 7.4)

Description

A flaw was found in Podman. In a Containerfile or Podman, data written to RUN --mount=type=bind mounts during the podman build is not discarded. This issue can lead to files created within the container appearing in the temporary build context directory on the host, leaving the created files accessible.

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CVSS v3.1 Score

7.4

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Weakness Type (CWE)

CWE-378 CWE-378

References

Other References

https://access.redhat.com/errata/RHSA-2024:8690 https://access.redhat.com/errata/RHSA-2025:15904 https://access.redhat.com/errata/RHSA-2025:16724 https://access.redhat.com/errata/RHSA-2025:16729 https://access.redhat.com/errata/RHSA-2025:17669 https://access.redhat.com/errata/RHSA-2025:22265 https://access.redhat.com/errata/RHSA-2025:22275 https://access.redhat.com/errata/RHSA-2025:22695 https://access.redhat.com/errata/RHSA-2025:22724 https://access.redhat.com/errata/RHSA-2025:22732

Frequently Asked Questions

What is CVE-2025-4953? +

A flaw was found in Podman. In a Containerfile or Podman, data written to RUN --mount=type=bind mounts during the podman build is not discarded. This issue can lead to files created within the container appearing in the temporary build context directory on the host, leaving the created files accessible. It has a CVSS v3.1 base score of 7.4 (HIGH).

How severe is CVE-2025-4953? +

CVE-2025-4953 has a CVSS v3.1 score of 7.4 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

How do I check if I'm vulnerable to CVE-2025-4953? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2025-4953