CVE-2026-6552

EUVD-2026-36229
GitLab has remediated an issue in GitLab EE affecting all versions from 15.5 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2 that under certain conditions could have allowed an authenticated user with group Owner role to take over another group member's GitLab account due to improper authorization in the Group SAML identity management functionality.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.7 HIGH
NETWORK
LOW
HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 1%
Affected Products (NVD)
VendorProductVersion
gitlabgitlab
15.5.0 ≤
𝑥
< 18.10.8
gitlabgitlab
15.5.0 ≤
𝑥
< 18.10.8
gitlabgitlab
18.11.0 ≤
𝑥
< 18.11.5
gitlabgitlab
18.11.0 ≤
𝑥
< 18.11.5
gitlabgitlab
19.0.0 ≤
𝑥
< 19.0.2
gitlabgitlab
19.0.0 ≤
𝑥
< 19.0.2
𝑥
= Vulnerable software versions