CVE-2026-12436

HighCVSS 8.4/10Last modified Aug 3, 2026

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.0 before 19.0.5, 19.1 before 19.1.3, and 19.2 before 19.2.1 that under certain conditions could have allowed an authenticated user to modify CI/CD configuration belonging to another user due to improper validation of user-supplied attributes when processing pipeline schedule inputs.

Metrics

CVSS 3.1 8.4/10CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:L

Weakness enumeration

CWE-915

Affected software

Vendor	Product	Versions
GitLab	GitLab	>= 18.0, < 19.0.5; >= 19.1, < 19.1.3; >= 19.2, < 19.2.1

References

https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-2-1-released/Release Notes, Vendor Advisory
https://gitlab.com/gitlab-org/gitlab/-/work_items/603223Broken Link
https://hackerone.com/reports/3800511Permissions Required

Timeline

Published: Jul 29, 2026
Last modified: Aug 3, 2026
NVD status: Analyzed

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