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.
References10
- access.redhat.com/errata/RHSA-2024:8690
- access.redhat.com/errata/RHSA-2025:15904
- access.redhat.com/errata/RHSA-2025:16724
- access.redhat.com/errata/RHSA-2025:16729
- access.redhat.com/errata/RHSA-2025:17669
- access.redhat.com/errata/RHSA-2025:22265
- access.redhat.com/errata/RHSA-2025:22275
- access.redhat.com/errata/RHSA-2025:22695
- access.redhat.com/errata/RHSA-2025:22724
- access.redhat.com/errata/RHSA-2025:22732
Metrics
- CVSS 3.1
-
7.4
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N - EPSS — exploit probability
- 1% percentile: 51 · as of 8 November 2026
- CWE
- CWE-378
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.