CVE-2026-114098

High

Description

Dulwich from 0.22.5 before 1.2.8 contains a path traversal vulnerability in stash.py pop() that allows attackers to write arbitrary files outside the worktree through intermediate directory symlinks. Attackers can craft a malicious repository whose popped stash writes a payload into .git/hooks/post-checkout, achieving code execution on the next checkout.

SeverityHigh

CVSS7.8

Exploit probability—

ProductDulwich

PublishedOct 21, 2026

First seenOct 21, 2026

Weakness typeCWE-22Path traversal

How to fix

Update

dulwich1.2.8 or later

Vendor advisories

github.com/jelmer/dulwich/security/advisories/GHSA-cm62-gvxx-vmxx

Affected products

Product	Affected versions	Fixed in
dulwichPyPI	0.22.5 ≤ v < 1.2.8	1.2.8

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