How severe is CVE-2024-51990?

CVE-2024-51990 has a CVSS 4.0 base score of 9.3, rated critical severity.

Is CVE-2024-51990 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2024-51990?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2024-51990 have an EU (EUVD) identifier?

Yes. CVE-2024-51990 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-3221.

When was CVE-2024-51990 published?

CVE-2024-51990 was published on 2024-11-07 and last updated on 2026-06-17.

CVE-2024-51990

CVE-2024-51990 is a critical-severity vulnerability with a CVSS 4.0 base score of 9.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.

Key facts

Severity: Critical (CVSS 4.0 base score 9.3)
EPSS exploit prediction: 1% (44th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-3221
Weakness: CWE-22
Published: 2024-11-07
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2024-51990?: 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.
How severe is CVE-2024-51990?: CVE-2024-51990 has a CVSS 4.0 base score of 9.3, rated critical severity.
Is CVE-2024-51990 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2024-51990?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2024-51990 have an EU (EUVD) identifier?: Yes. CVE-2024-51990 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-3221.
When was CVE-2024-51990 published?: CVE-2024-51990 was published on 2024-11-07 and last updated on 2026-06-17.

References

https://github.com/martinvonz/jj/security/advisories/GHSA-88h5-6w7m-5w56

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