Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 16.0 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that could have allowed an authenticated user with a read_api scoped OAuth application to create issues and add comments to issues in private projects due to improper authorization.
References (3)
Core 3
Core References
Exploit technical-description
exploit
permissions-required
HackerOne Bug Bounty Report #3508895
https://hackerone.com/reports/3508895
Scores
CVSS v3
6.8
EPSS
0.0001
EPSS Percentile
1.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-840
Status
published
Products (4)
GitLab/GitLab
16.0 - 18.9.7
gitlab/gitlab
16.0.0 - 18.9.7 (2 CPE variants)
GitLab/GitLab
18.10 - 18.10.6
GitLab/GitLab
18.11 - 18.11.3
Published
May 14, 2026
Tracked Since
May 14, 2026