CVE-2026-3988

HIGH EPSS 37.7%
Published Mar 25, 20263mo ago · Modified Jun 17, 20261w ago
7.5 CVSS 3.1
High
Find Similar
Published Mar 25, 2026 3mo ago
Last Modified Jun 17, 2026 1w ago

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.5 before 18.8.7, 18.9 before 18.9.3, and 18.10 before 18.10.1 that could have allowed an unauthenticated user to cause a denial of service by making the GitLab instance unresponsive due to improper input validation in GraphQL request processing.

CVSS Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
37.7% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-407

Affected Products 6

VendorProductVersionRange
gitlabgitlab*≥18.5.0  –  <18.8.7
gitlabgitlab*≥18.5.0  –  <18.8.7
gitlabgitlab*≥18.9.0  –  <18.9.3
gitlabgitlab*≥18.9.0  –  <18.9.3
gitlabgitlab18.10.0any
gitlabgitlab18.10.0any

References 3

  • about.gitlab.com https://about.gitlab.com/releases/2026/03/25/patch-release-gitlab-18-10-1-released/
    Release NotesVendor Advisory
  • gitlab.com https://gitlab.com/gitlab-org/gitlab/-/work_items/593140
    Broken Link
  • hackerone.com https://hackerone.com/reports/3597342
    Permissions Required

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.