CVE Tools
Sign in
Home/Vulnerability/CVE-2026-6552

CVE-2026-6552

Authorization Bypass Through User-Controlled Key in GitLab

Published: Jun 11, 2026Updated: Jun 11, 2026 Sources: CVE List
NVD MITRE
8.7CVSS
HIGH

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.

EPSS Score
N/A
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

CVSS Vector Breakdown

AV:NAC:LPR:HUI:NS:CC:HI:HA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:HPrivileges Required
High
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:NAvailability
None

Weaknesses

CWE-639CWE-639: Authorization Bypass Through User-Controlled Key

Affected Products

GitLab
GitLab

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

https://gitlab.com/gitlab-org/gitlab/-/work_items/597295
gitlab.com
https://hackerone.com/reports/3655189
hackerone.com
https://about.gitlab.com/releases/2026/06/10/patch-release-gitlab-19-0-2-released/
about.gitlab.com
News mentions
1

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2026-6552 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows