CVE-2025-4953

CVE-2025-4953 is a high-severity vulnerability with a CVSS 3.x base score of 7.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-378.

Key facts

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.

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.
How severe is CVE-2025-4953?
CVE-2025-4953 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2025-4953 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-4953?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-4953 have an EU (EUVD) identifier?
Yes. CVE-2025-4953 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-29612.
When was CVE-2025-4953 published?
CVE-2025-4953 was published on 2025-09-16 and last updated on 2026-06-30.

References

Other CWE-378 vulnerabilities

Browse all CWE-378 vulnerabilities →