SB20260918103 - Multiple vulnerabilities in Podman

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Main Vulnerability Database SB20260918103

SB20260918103 - Multiple vulnerabilities in Podman

Published: September 18, 2026

Security Bulletin ID SB20260918103
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Remote access
Highest impact

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 vulnerabilities.


1) Path traversal (CVE-ID: CVE-2025-11395)

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CVSSv4: 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]


The vulnerability allows a remote attacker to overwrite attacker-chosen files and modify their attributes.

The vulnerability exists due to improper archive extraction in storage/pkg/archive when extracting a maliciously crafted tar archive. A remote attacker can provide a maliciously crafted tar archive to overwrite attacker-chosen files and modify their attributes.

User interaction is required to extract the crafted archive.


2) Input validation error (CVE-ID: CVE-2026-79699)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: 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]


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.


3) Path traversal (CVE-ID: CVE-2026-79705)

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CVSSv4: 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]


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.


Remediation

Install update from vendor's website.

References