Vulnerability in Gitoxidelabs Gitoxide
CVE-2026-100419
gitoxide gix-fs before 0.23.0 contains a path validation bypass vulnerability in the worktree checkout mechanism that allows attackers to escape the worktree directory via symlink manipulation. During forced checkout with overwrite_existing enabled, attackers can craft malicious repository trees where symlink entries replace validated directories, causing subsequent files to be written outside the worktree through the symlink for code execution or file manipulation.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.002 (12.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 13th percentile — 12.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.002 · change: +0.001
Affected products
Weakness classification (CWE)
References
- github.com/GitoxideLabs/gitoxide (product)
- gix-fs 0.22.1 stack.rs pop loop and disarmed guard (technical-description)
- Patch Commit (patch)
- GitHub Security Advisory (GHSA-6p9q-f2xg-6pr5) (vendor-advisory)
- GitHub Security Advisory (GHSA-f89h-2fjh-2r9q) (related, vendor-advisory)
- VulnCheck Advisory: gitoxide gix-fs before 0.23.0 Worktree Escape via Symlink (third-party-advisory)
Frequently asked questions
- What is CVE-2026-100419?
- CVE-2026-100419 is a high-severity vulnerability in Gitoxidelabs Gitoxide, classified under Improper Link Resolution Before File Access. CVSS score: 7.0/10. Published 2026-09-25.
- How severe is CVE-2026-100419?
- High severity. CVSS v3 base score is 7.0 out of 10.