Path traversal via crafted Git repositories in jj
Priority HIGH 81CWE-22Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub.
Summary
jj, or Jujutsu, is a Git-compatible VCS written in rust. In affected versions specially crafted Git repositories can cause `jj` to write files outside the clone. This issue has been addressed in version 0.23.0. Users are advised to upgrade. Users unable to upgrade should avoid cloning repos from unknown sources.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00615 49th percentileScored 2026-11-07
Fix Fixed jj (martinvonz): 0.23.0jj-lib (crates.io): 0.23.0
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| martinvonz | jj | before 0.23.0 | 0.23.0 | Patch available | CNA |
| — | jj-lib (crates.io) | before 0.23.0 | 0.23.0 | Patch available | GHSA-88h5-6w7m-5w56 |
- jj Vendormartinvonz Affected before 0.23.0 Fixed in 0.23.0 Patch available CNA
- jj-lib (crates.io) Vendor— Affected before 0.23.0 Fixed in 0.23.0 Patch available GHSA-88h5-6w7m-5w56
CPE names CISA-ADP · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:martinvonz:jj:*:*:*:*:*:*:*:* | — | — | martinvonz |
- cpe:2.3:a:martinvonz:jj:*:*:*:*:*:*:*:* Versions — — ·martinvonz
Remediation
- Fix · CNA jj (martinvonz) Fixed in 0.23.0
- Fix · GHSA-88h5-6w7m-5w56 jj-lib (crates.io) Fixed in 0.23.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2024-51990
- 2026-10-03 Alias added: GHSA-88h5-6w7m-5w56
References
Sources
- CVE-2024-51990 · CVE Program
- CVE-2024-51990 · NVD
- FIRST EPSS
- GHSA-88h5-6w7m-5w56 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences