What is GHSA-8wh8-hpg9-jvx8?

GHSA-8wh8-hpg9-jvx8 is a security advisory published by GitHub Security Advisories with High severity. Dulwich from 0.24.0 before 1.2.8 contains a symlink following vulnerability in porcelain.checkout...

Which CVE IDs does GHSA-8wh8-hpg9-jvx8 cover?

GHSA-8wh8-hpg9-jvx8 covers the following CVE IDs: CVE-2026-114096. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-8wh8-hpg9-jvx8?

GHSA-8wh8-hpg9-jvx8 has a CVSS v3 base score of 7.8, published by GitHub Security Advisories.

GHSA-8wh8-hpg9-jvx8HighCVSS 7.8

Dulwich from 0.24.0 before 1.2.8 contains a symlink following vulnerability in porcelain.checkout...

Vendor

GitHub Security Advisories

Published

October 21, 2026

Last Modified

October 21, 2026

🔗 CVE IDs covered (1)

CVE-2026-114096 →

📋 Description

Dulwich from 0.24.0 before 1.2.8 contains a symlink following vulnerability in porcelain.checkout(paths=[...]) that allows attackers to write arbitrary files by abusing raw os.open without O_NOFOLLOW. Attackers can craft a repository where a worktree symlink points to .git/hooks/post-checkout, so restoring the file from a tag writes a malicious hook for code execution.

🔗 References (4)

https://github.com/jelmer/dulwich/security/advisories/GHSA-8w8g-wq8h-fq33
https://nvd.nist.gov/vuln/detail/CVE-2026-114096
https://www.vulncheck.com/advisories/dulwich-0.24.0-before-1.2.8-symlink-write-through-via-porcelain-checkout-paths
https://github.com/advisories/GHSA-8wh8-hpg9-jvx8