CVE-2026-123533
Gitoxide before 0.42.0 Denial of Service via Crafted Commit-Graph File
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.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| gitoxide GitoxideLabs gix-commitgraph
cargo |
≥ 0; < 0.42.0 (affected, semver) 0.42.0 (unaffected, semver) Other versions: unaffected |
CNA: VulnCheck |
| gitoxide GitoxideLabs gitoxide
cargo |
≥ 0; < 0.61.0 (affected, semver) 0.61.0 (unaffected, semver) Other versions: unaffected |
CNA: VulnCheck |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 6.8 medium |
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N | CNA: VulnCheck |
| 3.1 / 5.5 medium |
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H | CNA: VulnCheck |
| 4.0 / 6.8 medium |
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X | NVD: [email protected] |
| 3.1 / 5.5 medium |
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H | NVD: [email protected] |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://github.com/GitoxideLabs/gitoxide/security/advisories/GHSA-989c-xj77-266rCNA: VulnCheck · vendor-advisory
- https://www.vulncheck.com/advisories/gitoxide-before-0.42.0-denial-of-service-via-crafted-commit-graph-fileCNA: VulnCheck · third-party-advisory
- https://github.com/GitoxideLabs/gitoxide/security/advisories/GHSA-989c-xj77-266r[email protected]
- https://www.vulncheck.com/advisories/gitoxide-before-0.42.0-denial-of-service-via-crafted-commit-graph-file[email protected]
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