CVE-2026-3254

LowCVSS 3.5/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 3.5/10CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N

Weakness enumeration

CWE-1021

Affected software

No affected versions have been published.

Timeline

Published: Apr 22, 2026
Last modified: Jun 17, 2026
NVD status: Analyzed

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