CVE-2026-12565

Path Traversal (Zip-Slip) in unarchive module

Published Jun 17, 2026 CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-3vgw-585j-4m45 BBOT: Path traversal (Zip-Slip) in unarchive module - incomplete fix for CVE-2025-10284
History
Type Values Removed Values Added
First Time appeared Black Lantern Security
Black Lantern Security bbot
Vendors & Products Black Lantern Security
Black Lantern Security bbot
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Path Traversal (Zip-Slip) in unarchive module
Weaknesses CWE-22
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
BLSOPS
Published
Updated
Jun 18, 2026, 12:51 PM
Reserved
Jun 17, 2026, 9:31 PM
Status
Deferred
Published
Jun 17, 2026, 11:17 PM
Modified
Oct 23, 2026, 11:10 PM