CVE-2025-12653

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CVSS 3.1

6.5 medium

EPSS

<1%p21

Published

Nov 26, 2025 (Nov 26, 2025)

Modified

Jun 17, 2026

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.3 before 18.4.5, 18.5 before 18.5.3, and 18.6 before 18.6.1 that under specific conditions could have allowed an unauthenticated user to join arbitrary organizations by changing headers on some requests.

Vendors: gitlab
Products: gitlab
Weakness: CWE-290
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

NVD CVE.org GitHub PoCs EPSS (0.3%)

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