High severity · published Feb 11, 2026
CVE-2026-0958
Interpretation Conflict in GitLab
7.5
CVSS
0.4%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 39% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GI
GitLab · GitLab
18.4 before 18.6.6; 18.7 before 18.7.4; 18.8 before 18.8.4 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-0958
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-0958
Release Notes
https://about.gitlab.com/releases/2026/02/10/patch-release-gitlab-18-8-4-released/
Broken Link
https://gitlab.com/gitlab-org/gitlab/-/issues/586202
Permissions Required
https://hackerone.com/reports/3463363
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