---
id: CVE-2026-114098
title: Dulwich 0.22.5 before 1.2.8 Path Traversal via Stash Pop Symlinks
summary: >-
  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 repos…
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'
cvssSource: cna
cwe:
  - CWE-22
vendor: jelmer
product: dulwich
affected:
  - dulwich >= 0.22.5 < 1.2.8
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-10-27T21:53:59.243541Z'
published: '2026-10-21'
updated: '2026-10-27'
sourceUpdated: '2026-10-27T21:54:10.359Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-114098'
references:
  - url: 'https://github.com/jelmer/dulwich/security/advisories/GHSA-cm62-gvxx-vmxx'
    label: GitHub Security Advisory (GHSA-cm62-gvxx-vmxx)
  - url: >-
      https://www.vulncheck.com/advisories/dulwich-0.22.5-before-1.2.8-path-traversal-via-stash-pop-symlinks
    label: >-
      VulnCheck Advisory: Dulwich 0.22.5 before 1.2.8 Path Traversal via Stash
      Pop Symlinks
  - url: >-
      https://github.com/jelmer/dulwich/commit/40a542cb02f9ac39a9eeac1193472903098698f9
  - url: 'https://github.com/jelmer/dulwich'
  - url: 'https://github.com/jelmer/dulwich/releases/tag/dulwich-1.2.8'
tags:
  - cve.org
  - osv
  - pip
epss: 0.00152
epssPercentile: 0.04382
aliases:
  - GHSA-cm62-gvxx-vmxx
ecosystem: pip
patched:
  - dulwich 1.2.8
scores:
  cna: 7.8
  osv: 8.6
ingestedAt: '2026-10-21T01:37:08.016Z'
---

## Overview

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.

## Affected

- `dulwich >= 0.22.5 < 1.2.8`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Package advisory (CVE-2026-114098)

Affected packages:

- `dulwich >= 0.22.5, < 1.2.8`

Patched in:

- `dulwich 1.2.8`

Source: https://osv.dev/vulnerability/GHSA-cm62-gvxx-vmxx