Input validation error in Podman - CVE-2026-79699
Published: September 18, 2026
Vulnerability identifier: #VU150894
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-2026-79699
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to overwrite arbitrary local files outside of the extraction destination.
The vulnerability exists due to improper input validation in storage/pkg/archive.{UnpackLayer,ApplyLayer,ApplyUncompressedLayer} when extracting a maliciously crafted tar archive. A remote attacker can supply a maliciously crafted tar archive to overwrite arbitrary local files outside of the extraction destination.
User interaction is required to extract the crafted archive.
Affected software
Podman
How to mitigate CVE-2026-79699
Install security update from vendor's website.
Podman - addressed in versions 5.8.7, 6.1.2