CVE-2026-3254

Published Apr 22, 2026

Last updated 3 hours ago

Overview

Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.11 before 18.11.1 that under certain conditions could have allowed an authenticated user to load unauthorized content into another user's browser due to improper input validation in the Mermaid sandbox.
Source
cve@gitlab.com
NVD status
Analyzed
Products
gitlab

Risk scores

CVSS 3.1

Type
Secondary
Base score
3.5
Impact score
1.4
Exploitability score
2.1
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
Severity
LOW

Weaknesses

cve@gitlab.com
CWE-1021

Social media

Hype score
Not currently trending

Configurations