🔐 CVE Alert

CVE-2026-12436

HIGH 8.4

Improperly Controlled Modification of Dynamically-Determined Object Attributes in GitLab

CVSS Score
8.4
EPSS Score
0.0%
EPSS Percentile
0th

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.

CWE CWE-915
Vendor gitlab
Product gitlab
Ecosystems
Industries
Technology
Published Jul 29, 2026
Last Updated Jul 29, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:L
Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
Low

Affected Versions

GitLab / GitLab
18.0 < 19.0.5 19.1 < 19.1.3 19.2 < 19.2.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗
gitlab.com: https://gitlab.com/gitlab-org/gitlab/-/work_items/603223 hackerone.com: https://hackerone.com/reports/3800511 docs.gitlab.com: https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-2-1-released/

Credits

Thanks [a0xnirudh](https://hackerone.com/a0xnirudh) for reporting this vulnerability through our HackerOne bug bounty program