Path Traversal in Jelmer Dulwich
CVE-2026-114098
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.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/jelmer/dulwich/security/advisories/GHSA-cm62-gvxx-vmxx (vendor-advisory)
- www.vulncheck.com/advisories/dulwich-0.22.5-before-1.2.8-path-traversal-via-sta… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-114098?
- CVE-2026-114098 is a high-severity vulnerability in Jelmer Dulwich, classified under Path Traversal. CVSS score: 7.8/10. Published 2026-10-21.
- How severe is CVE-2026-114098?
- High severity. CVSS v3 base score is 7.8 out of 10.