---
title: "CVE-2026-114097: Dulwich - Path Traversal & Remote Code Execution"
description: "Dulwich >= 0.23.1 < 1.2.8 contains a path traversal caused by symlink handling in CommitFilter._apply_index_filter(), letting attackers write files outside the working directory, exploit requires crafted repository with symlinks."
url: https://panop.io/threat-heartbeat/CVE-2026-114097/
---

# CVE-2026-114097 Dulwich - Path Traversal & Remote Code Execution

Dulwich >= 0.23.1 < 1.2.8 contains a path traversal caused by symlink handling in CommitFilter.\_apply\_index\_filter(), letting attackers write files outside the working directory, exploit requires crafted repository with symlinks.

CVSS base score 7.8 /10

High

CISA KEV

Not listed

Public exploit

None known

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-114097)

## Details

Type

Path Traversal

Impact

File System Write, Remote Code Execution

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Published

21 October 2026

Updated

21 October 2026

Weakness

[CWE-22](https://cwe.mitre.org/data/definitions/22.html)

## Vendor fix

Update to version 1.2.8 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-114097](https://nvd.nist.gov/vuln/detail/CVE-2026-114097)
- [https://github.com/jelmer/dulwich/security/advisories/GHSA-5fqc-mrg8-w798](https://github.com/jelmer/dulwich/security/advisories/GHSA-5fqc-mrg8-w798)
- [https://www.vulncheck.com/advisories/dulwich-0.23.1-before-1.2.8-symlink-path-traversal-via-filter-branch-index-filter](https://www.vulncheck.com/advisories/dulwich-0.23.1-before-1.2.8-symlink-path-traversal-via-filter-branch-index-filter)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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