---
id: CVE-2026-12565
title: >-
  BBOT: Path traversal (Zip-Slip) in unarchive module - incomplete fix for
  CVE-2025-10284
summary: >-
  BBOT: Path traversal (Zip-Slip) in unarchive module - incomplete fix for
  CVE-2025-10284
severity: medium
cvss: 5.3
cwe:
  - CWE-22
  - CWE-61
vendor: bbot
product: bbot
affected:
  - 'bbot >= 2.3.1, <= 2.8.4'
patched:
  - bbot 2.8.5
published: '2026-06-18'
updated: '2026-06-18'
source: GHSA
sourceUrl: 'https://github.com/advisories/GHSA-3vgw-585j-4m45'
references:
  - url: >-
      https://github.com/blacklanternsecurity/bbot/security/advisories/GHSA-3vgw-585j-4m45
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-12565'
  - url: 'https://github.com/blacklanternsecurity/bbot/commit/4fb38fd6e'
  - url: 'https://github.com/advisories/GHSA-3vgw-585j-4m45'
tags:
  - ghsa
  - pip
epss: 0.00208
epssPercentile: 0.09692
ingestedAt: '2026-06-19T03:39:00.812Z'
ecosystem: pip
---

## Overview

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.

## Affected packages

- `bbot >= 2.3.1, <= 2.8.4`

## Remediation

Upgrade to a patched release:

- `bbot 2.8.5`