CVE-2026-0958

high

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.

References

https://about.gitlab.com/releases/2026/02/10/patch-release-gitlab-18-8-4-released/

https://hackerone.com/reports/3463363

https://gitlab.com/gitlab-org/gitlab/-/issues/586202

Details

Source: Mitre, NVD

Published: 2026-02-11

Updated: 2026-02-11

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Severity: High

CVSS v3

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Severity: High

EPSS

EPSS: 0.00029