Vulnerability Description
gix-commitgraph before 0.42.0, as used in gitoxide before 0.61.0, contains a denial of service vulnerability because its commit-graph parser does not validate parent graph positions against the declared commit count or check the EDGE chunk length for 4-byte alignment. Attackers can supply a repository containing a crafted .git/objects/info/commit-graph file to trigger panics that abort gix merge-base, gix blame, and applications embedding gix.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/GitoxideLabs/gitoxide/security/advisories/GHSA-989c-xj77-266r
- https://www.vulncheck.com/advisories/gitoxide-before-0.42.0-denial-of-service-vi
FAQ
What is CVE-2026-123533?
CVE-2026-123533 is a vulnerability with a CVSS score of 5.5 (MEDIUM). gix-commitgraph before 0.42.0, as used in gitoxide before 0.61.0, contains a denial of service vulnerability because its commit-graph parser does not validate parent graph positions against the declar...
How severe is CVE-2026-123533?
CVE-2026-123533 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-123533?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.