GitHub Advisoryadvisory · PyPI

GHSA-3vgw-585j-4m45 BBOT: Path traversal (Zip-Slip) in unarchive module - incomplete fix for CVE-2025-10284

MEDIUM Published 2026-06-18 Modified 2026-06-18 Official page ↗
Aliases
CVE-2026-12565
Ecosystem
PyPI
Packages
bbot
Severity
Moderate
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N
Weaknesses
CWE-22, CWE-61
Reviewed
2026-06-18

Affected packages

• PyPI bbot: >= 2.3.1, < 2.8.5 → fixed in 2.8.5

Description

The `unarchive` internal module's archive extraction commands perform no code-level validation on extracted file paths, relying entirely on the behavior of external tools (e.g. GNU tar) which varies by platform. While CVE-2025-10284 addressed git-specific RCE vectors, the underlying archive extraction path traversal was never fixed. On systems with GNU tar < 1.34 (Ubuntu 20.04, Debian Buster, CentOS 7, many Docker base images), a malicious archive can write files outside the intended extraction directory.

Related

Alias · CVE (1)

  • CVE-2026-12565 The unarchive internal module's archive extraction commands perform no code-level validation on extracted file paths, relying entirely on… vulnerability

Weakness · CWE (2)

  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory weakness
  • CWE-61 UNIX Symbolic Link (Symlink) Following weakness

References