Path traversal in Podman - CVE-2026-79705
Published: September 18, 2026
Vulnerability identifier: #VU150896
CSH Severity: Medium
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-79705
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to overwrite arbitrary local files.
The vulnerability exists due to improper file path handling in the buildah/copier Go package when extracting maliciously crafted tar archives. A remote attacker can provide a maliciously crafted tar archive to overwrite arbitrary local files.
The issue is limited to uses outside the Buildah codebase by non-root or non-Linux users.
Affected software
Podman
How to mitigate CVE-2026-79705
Install security update from vendor's website.
Podman - addressed in versions 5.8.7, 6.1.2