CVE-2025-6601

GitLab has remediated an issue in GitLab EE affecting all versions from 18.4 before 18.4.3, and 18.5 before 18.5.1 that under certain conditions could have allowed authenticated users to gain unauthorized project access by exploiting the access request approval workflow.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
2.7 LOW
NETWORK
LOW
HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N
GitLabCNA
2.7 LOW
NETWORK
LOW
HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N
CISA-ADPADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 3%
VendorProductVersion
gitlabgitlab
18.4.0 ≤
𝑥
< 18.4.3
gitlabgitlab
18.5.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
gitlab
sid
17.6.5-19
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
gitlab
questing
dne
plucky
dne
noble
dne
jammy
dne
xenial
ignored
Common Weakness Enumeration
References
https://about.gitlab.com/releases/2025/10/22/patch-release-gitlab-18-5-1-released/
https://gitlab.com/gitlab-org/gitlab/-/issues/551267
https://hackerone.com/reports/3209641