CVE-2026-2973

MEDIUM EPSS 7.0%
Published Mar 25, 20263mo ago · Modified Jun 17, 20262w ago
5.4 CVSS 3.1
Medium
Find Similar
Published Mar 25, 2026 3mo ago
Last Modified Jun 17, 2026 2w ago

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.7 before 18.8.7, 18.9 before 18.9.3, and 18.10 before 18.10.1 that could have allowed an authenticated user to execute arbitrary JavaScript in a user's browser due to improper sanitization of entity-encoded content in Mermaid diagrams.

CVSS Details

Base Score
5.4
Exploitability
2.3
Impact
2.7
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction Required
Scope Changed
Confidentiality Low
Integrity Low
Availability None

Threat Intelligence

EPSS Exploit Probability
7.0% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-79 Cross-site Scripting Injection

Affected Products 6

VendorProductVersionRange
gitlabgitlab*≥17.7.0  –  <18.8.7
gitlabgitlab*≥17.7.0  –  <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/591049
    Broken Link
  • hackerone.com https://hackerone.com/reports/3566802
    Permissions Required

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.