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CVE-2026-3254

nvd nist
Published: Apr 22, 2026Modified: Jun 17, 2026

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3.5
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
Exploitability: 2.1 / Impact: 1.4
Source: cve@gitlab.com (Secondary)

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.

Affected (2)

Products: Gitlab: Gitlab
Gitlab
1 product
Gitlab
Configuration A
2 vulnerable
Vulnerable SoftwareAffected Versions
Gitlab
Gitlab
Version 18.11.0
Gitlab
Version 18.11.0

Related CWEs

CWE-1021
Improper Restriction of Rendered UI Layers or Frames
The web application does not restrict or incorrectly restricts frame objects or UI layers that belong to another application or domain, which can lead to user confusion about which interface the user is interacting with.

References (2)

Source: cve@gitlab.com
Broken Link
Source: cve@gitlab.com
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Timeline

No history available yet.