CVE-2026-6552

HIGH EPSS 19.6%
Published Jun 11, 20262w ago · Modified Jun 17, 20261w ago
8.7 CVSS 3.1
High
Find Similar
Published Jun 11, 2026 2w ago
Last Modified Jun 17, 2026 1w ago

Description

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.

CVSS Details

Base Score
8.7
Exploitability
2.3
Impact
5.8
Vector string
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required High
User Interaction None
Scope Changed
Confidentiality High
Integrity High
Availability None

Threat Intelligence

EPSS Exploit Probability
19.6% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-639

Affected Products 6

VendorProductVersionRange
gitlabgitlab*≥15.5.0  –  <18.10.8
gitlabgitlab*≥15.5.0  –  <18.10.8
gitlabgitlab*≥18.11.0  –  <18.11.5
gitlabgitlab*≥18.11.0  –  <18.11.5
gitlabgitlab*≥19.0.0  –  <19.0.2
gitlabgitlab*≥19.0.0  –  <19.0.2

References 3

  • about.gitlab.com https://about.gitlab.com/releases/2026/06/10/patch-release-gitlab-19-0-2-released/
    Release Notes
  • gitlab.com https://gitlab.com/gitlab-org/gitlab/-/work_items/597295
    Issue Tracking
  • hackerone.com https://hackerone.com/reports/3655189
    Permissions Required

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.