Vulnerability Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.4 before 18.6.6, 18.7 before 18.7.4, and 18.8 before 18.8.4 that could have allowed an unauthenticated user to cause denial of service through memory or CPU exhaustion by bypassing JSON validation middleware limits.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Gitlab | Gitlab | >= 18.4.0, < 18.6.6 |
Related Weaknesses (CWE)
References
- https://about.gitlab.com/releases/2026/02/10/patch-release-gitlab-18-8-4-releaseRelease NotesVendor Advisory
- https://gitlab.com/gitlab-org/gitlab/-/issues/586202Broken LinkIssue Tracking
- https://hackerone.com/reports/3463363Permissions Required
FAQ
What is CVE-2026-0958?
CVE-2026-0958 is a vulnerability with a CVSS score of 7.5 (HIGH). GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.4 before 18.6.6, 18.7 before 18.7.4, and 18.8 before 18.8.4 that could have allowed an unauthenticated user to cause denia...
How severe is CVE-2026-0958?
CVE-2026-0958 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-0958?
Check the references section above for vendor advisories and patch information. Affected products include: Gitlab Gitlab.