CVE-2026-19650

HighCVSS 7.1/10Last modified Sep 2, 2026

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.2 before 18.11.11, 19.0 before 19.0.8, 19.1 before 19.1.6, and 19.2 before 19.2.4 that under certain conditions could have allowed an unauthenticated user to execute mutations via GET requests due to improper request validation in GraphQL multiplex query handling.

Metrics

CVSS 3.1 7.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L

Weakness enumeration

CWE-352

Affected software

Vendor	Product	Versions
GitLab	GitLab	>= 18.2, < 18.11.11; >= 19.0, < 19.0.8; >= 19.1, < 19.1.6; >= 19.2, < 19.2.4

References

https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-2-4-released/Vendor Advisory
https://gitlab.com/gitlab-org/gitlab/-/work_items/612617Not Applicable
https://hackerone.com/reports/3903669Permissions Required

Timeline

Published: Aug 17, 2026
Last modified: Sep 2, 2026
NVD status: Analyzed

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