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CVE Vulnerability Details :
CVE-2026-6552
PUBLISHED
More InfoOfficial Page
Assigner-GitLab
Assigner Org ID-ceab7361-8a18-47b1-92ba-4d7d25f6715a
View Known Exploited Vulnerability (KEV) details
Published At-11 Jun, 2026 | 10:20
Updated At-11 Jun, 2026 | 12:32
Rejected At-
▼CVE Numbering Authority (CNA)
Authorization Bypass Through User-Controlled Key in GitLab

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.

Affected Products
Vendor
GitLab Inc.GitLab
Product
GitLab
Repo
git://git@gitlab.com:gitlab-org/gitlab.git
CPEs
  • cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
Default Status
unaffected
Versions
Affected
  • From 15.5 before 18.10.8 (semver)
  • From 18.11 before 18.11.5 (semver)
  • From 19.0 before 19.0.2 (semver)
Problem Types
TypeCWE IDDescription
CWECWE-639CWE-639: Authorization Bypass Through User-Controlled Key
Type: CWE
CWE ID: CWE-639
Description: CWE-639: Authorization Bypass Through User-Controlled Key
Metrics
VersionBase scoreBase severityVector
3.18.7HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N
Version: 3.1
Base score: 8.7
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Upgrade to versions 18.10.8, 18.11.5, 19.0.2 or above.

Configurations
Workarounds
Exploits
Credits
finder
Thanks [cyberjoker](https://hackerone.com/cyberjoker) for reporting this vulnerability through our HackerOne bug bounty program
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://gitlab.com/gitlab-org/gitlab/-/work_items/597295
N/A
https://hackerone.com/reports/3655189
technical-description
exploit
permissions-required
https://about.gitlab.com/releases/2026/06/10/patch-release-gitlab-19-0-2-released/
N/A
Hyperlink: https://gitlab.com/gitlab-org/gitlab/-/work_items/597295
Resource: N/A
Hyperlink: https://hackerone.com/reports/3655189
Resource:
technical-description
exploit
permissions-required
Hyperlink: https://about.gitlab.com/releases/2026/06/10/patch-release-gitlab-19-0-2-released/
Resource: N/A
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Details not found