Authorization Bypass Through User-Controlled Key in GitLab_CVE-2026-6552

8.7 / 10

HIGH

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N

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.

AI Analysis

An authenticated user with group Owner role could take over another group member's GitLab account due to improper authorization in the Group SAML identity management functionality.

Basic Information

ID CVE-2026-6552

Source GitLab

Published Jun 11, 2026 at 10:20

Modified Jun 11, 2026 at 12:32

Affected Product

Vendor GitLab

Product GitLab

Version 15.5

Affected Versions GitLab GitLab 15.5
GitLab GitLab 18.11
GitLab GitLab 19.0

CWE Classification

CWE-639

AI Assessment

AI Score 8.7 / 10

AI Severity High

Vendor GitLab

Product GitLab EE

Version 15.5, 18.11, 19.0

References

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    "published": "2026-06-11T10:20:21.427Z",
    "modified": "2026-06-11T12:32:35.349Z",
    "type": "cve",
    "title": "Authorization Bypass Through User-Controlled Key in GitLab",
    "source": "GitLab",
    "references": "https://gitlab.com/gitlab-org/gitlab/-/work_items/597295\nhttps://hackerone.com/reports/3655189\nhttps://about.gitlab.com/releases/2026/06/10/patch-release-gitlab-19-0-2-released/",
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