Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 12.8 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 with Maintainer role to modify protected branch configuration due to improper authorization in a projects API endpoint.
References (3)
Core 3
Core References
Exploit technical-description
exploit
permissions-required
HackerOne Bug Bounty Report #3807593
https://hackerone.com/reports/3807593
Scores
CVSS v3
4.9
EPSS
0.0033
EPSS Percentile
25.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-862
Status
published
Products (3)
GitLab/GitLab
12.8 - 19.0.5
GitLab/GitLab
19.1 - 19.1.3
GitLab/GitLab
19.2 - 19.2.1
Published
Jul 29, 2026
Tracked Since
Jul 30, 2026