CVE-2026-2973

MEDIUM

5.4

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.

CVE Details

CVSS v3.1 Score5.4

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredLOW

User InteractionREQUIRED

Published3/25/2026

Last Modified3/26/2026

Sourcenvd

Honeypot Sightings0

Affected Products

gitlab:gitlab

Weaknesses (CWE)

CWE-79

References

https://about.gitlab.com/releases/2026/03/25/patch-release-gitlab-18-10-1-released/(cve@gitlab.com)

https://gitlab.com/gitlab-org/gitlab/-/work_items/591049(cve@gitlab.com)

https://hackerone.com/reports/3566802(cve@gitlab.com)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.