High severity8.7NVD Advisory· Published Jun 11, 2026· Updated Jun 11, 2026

CVE-2026-6552

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 Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

108

GitLab Inc./GitLabreferences3 versions
(expand)+ 2 more
- (no CPE)
- cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*range: >=15.5.0,<18.10.8
- cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*range: >=15.5.0,<18.10.8
osv-coords104 versions
pkg:apk/wolfi/gitlab-runner-oci-entrypoint-18.11 pkg:apk/chainguard/gitlab-rails-ce-assets-18.7 pkg:apk/chainguard/gitlab-rails-ce-assets-fips-18.9 pkg:apk/chainguard/gitlab-runner-helper-18.11 pkg:apk/chainguard/gitlab-shell-scripts-19.0 pkg:apk/chainguard/gitlab-workhorse-ce-fips-18.6 pkg:apk/wolfi/gitlab-docker-machine-18.11 pkg:apk/chainguard/gitlab-container-registry-19.0 pkg:apk/chainguard/gitlab-container-registry-fips-19.0 pkg:apk/chainguard/gitlab-container-registry-scripts-19.0 pkg:apk/chainguard/gitlab-docker-machine-19.0 pkg:apk/chainguard/gitlab-docker-machine-fips-18.11 pkg:apk/chainguard/gitlab-docker-machine-fips-19.0 pkg:apk/chainguard/gitlab-exporter-19.0 pkg:apk/chainguard/gitlab-rails-ce-18.6 pkg:apk/chainguard/gitlab-rails-ce-18.7 pkg:apk/chainguard/gitlab-rails-ce-18.8 pkg:apk/chainguard/gitlab-rails-ce-18.9 pkg:apk/chainguard/gitlab-rails-ce-assets-18.8 pkg:apk/chainguard/gitlab-rails-ce-assets-fips-18.1 pkg:apk/chainguard/gitlab-rails-ce-assets-fips-18.6 pkg:apk/chainguard/gitlab-rails-ce-doc-18.1 pkg:apk/chainguard/gitlab-rails-ce-doc-18.6 pkg:apk/chainguard/gitlab-rails-ce-doc-18.7 pkg:apk/chainguard/gitlab-rails-ce-doc-18.8 pkg:apk/chainguard/gitlab-rails-ce-doc-18.9 pkg:apk/chainguard/gitlab-rails-ce-doc-fips-18.1 pkg:apk/chainguard/gitlab-rails-ce-doc-fips-18.6 pkg:apk/chainguard/gitlab-rails-ce-doc-fips-18.7 pkg:apk/chainguard/gitlab-rails-ce-doc-fips-18.8 pkg:apk/chainguard/gitlab-rails-ce-fips-18.1 pkg:apk/chainguard/gitlab-rails-ce-fips-18.6 pkg:apk/chainguard/gitlab-rails-ce-fips-18.7 pkg:apk/chainguard/gitlab-rails-ce-fips-18.8 pkg:apk/chainguard/gitlab-runner-helper-19.0 pkg:apk/chainguard/gitlab-runner-helper-compat-18.11 pkg:apk/chainguard/gitlab-runner-helper-compat-19.0 pkg:apk/chainguard/gitlab-runner-helper-compat-fips-19.0 pkg:apk/chainguard/gitlab-runner-helper-fips-19.0 pkg:apk/chainguard/gitlab-runner-helper-oci-entrypoint-18.11 pkg:apk/chainguard/gitlab-runner-helper-oci-entrypoint-19.0 pkg:apk/chainguard/gitlab-runner-helper-oci-entrypoint-fips-18.11 pkg:apk/chainguard/gitlab-runner-helper-oci-entrypoint-fips-19.0 pkg:apk/chainguard/gitlab-runner-oci-entrypoint-19.0 pkg:apk/chainguard/gitlab-runner-oci-entrypoint-fips-18.11 pkg:apk/chainguard/gitlab-runner-oci-entrypoint-fips-19.0 pkg:apk/chainguard/gitlab-shell-fips-19.0 pkg:apk/chainguard/gitlab-sidekiq-ce-19.0 pkg:apk/chainguard/gitlab-toolbox-ce-19.0 pkg:apk/chainguard/gitlab-webservice-ce-19.0 pkg:apk/chainguard/gitlab-workhorse-ce-18.6 pkg:apk/chainguard/gitlab-workhorse-ce-fips-18.9 pkg:apk/chainguard/gitlab-workhorse-scripts-19.0 pkg:apk/wolfi/gitlab-docker-machine-19.0 pkg:apk/wolfi/gitlab-runner-18.11 pkg:apk/wolfi/gitlab-runner-helper-18.11 pkg:apk/wolfi/gitlab-runner-helper-19.0 pkg:apk/wolfi/gitlab-runner-helper-compat-18.11 pkg:apk/wolfi/gitlab-runner-oci-entrypoint-19.0 pkg:apk/chainguard/gitlab-cfssl-self-sign-scripts-19.0 pkg:apk/chainguard/gitlab-logger-fips-19.0 pkg:apk/chainguard/gitlab-rails-ce-assets-18.6 pkg:apk/chainguard/gitlab-rails-ce-assets-fips-18.7 pkg:apk/chainguard/gitlab-rails-ce-doc-fips-18.9 pkg:apk/chainguard/gitlab-rails-ce-fips-18.9 pkg:apk/chainguard/gitlab-runner-19.0 pkg:apk/chainguard/gitlab-runner-fips-18.11 pkg:apk/chainguard/gitlab-runner-helper-fips-18.11 pkg:apk/chainguard/gitlab-shell-19.0 pkg:apk/chainguard/gitlab-webservice-ce-fips-19.0 pkg:apk/chainguard/gitlab-workhorse-ce-18.8 pkg:apk/chainguard/gitlab-workhorse-ce-fips-18.7 pkg:apk/chainguard/gitlab-workhorse-scripts-fips-19.0 pkg:apk/wolfi/gitlab-runner-19.0 pkg:apk/wolfi/gitlab-runner-helper-compat-19.0 pkg:bitnami/gitlab pkg:apk/wolfi/gitlab-runner-helper-oci-entrypoint-19.0 pkg:apk/chainguard/gitlab-workhorse-ce-fips-18.8 pkg:apk/chainguard/gitaly-config-19.0 pkg:apk/chainguard/gitlab-base-19.0 pkg:apk/chainguard/gitlab-base-fips-19.0 pkg:apk/chainguard/gitlab-certificates-19.0 pkg:apk/chainguard/gitlab-cng-19.0 pkg:apk/chainguard/gitlab-cng-fips-19.0 pkg:apk/chainguard/gitlab-docker-machine-18.11 pkg:apk/chainguard/gitlab-rails-scripts-19.0 pkg:apk/chainguard/gitlab-rails-scripts-fips-19.0 pkg:apk/chainguard/gitlab-runner-18.11 pkg:apk/chainguard/gitlab-exporter-scripts-19.0 pkg:apk/chainguard/gitlab-pages-scripts-19.0 pkg:apk/wolfi/gitlab-runner-helper-oci-entrypoint-18.11 pkg:apk/chainguard/gitlab-logger-19.0 pkg:apk/chainguard/gitlab-runner-oci-entrypoint-18.11 pkg:apk/chainguard/gitlab-workhorse-ce-18.7 pkg:apk/chainguard/gitlab-workhorse-ce-18.9 pkg:apk/chainguard/gitlab-rails-ce-assets-18.9 pkg:apk/chainguard/gitlab-sidekiq-ce-fips-19.0 pkg:apk/chainguard/gitlab-gitaly-scripts-19.0 pkg:apk/chainguard/gitlab-rails-ce-18.1 pkg:apk/chainguard/gitlab-rails-ce-assets-fips-18.8 pkg:apk/chainguard/gitlab-runner-fips-19.0 pkg:apk/chainguard/gitlab-runner-helper-compat-fips-18.11 pkg:apk/chainguard/gitlab-rails-ce-assets-18.1 pkg:apk/chainguard/gitlab-toolbox-ce-fips-19.0
< 18.11.4-r2+ 103 more
- (no CPE)range: < 18.11.4-r2
- (no CPE)range: < 18.7.7-r4
- (no CPE)range: < 18.9.8-r4
- (no CPE)range: < 18.11.4-r2
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 18.6.8-r6
- (no CPE)range: < 18.11.4-r2
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 18.11.4-r4
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 18.6.8-r5
- (no CPE)range: < 18.7.7-r4
- (no CPE)range: < 18.8.11-r4
- (no CPE)range: < 18.9.8-r7
- (no CPE)range: < 18.8.11-r4
- (no CPE)range: < 18.1.6-r74
- (no CPE)range: < 18.6.8-r5
- (no CPE)range: < 18.1.6-r25
- (no CPE)range: < 18.6.8-r5
- (no CPE)range: < 18.7.7-r4
- (no CPE)range: < 18.8.11-r4
- (no CPE)range: < 18.9.8-r7
- (no CPE)range: < 18.1.6-r74
- (no CPE)range: < 18.6.8-r5
- (no CPE)range: < 18.7.7-r4
- (no CPE)range: < 18.8.11-r4
- (no CPE)range: < 18.1.6-r74
- (no CPE)range: < 18.6.8-r5
- (no CPE)range: < 18.7.7-r4
- (no CPE)range: < 18.8.11-r4
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 18.11.4-r2
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 18.11.4-r2
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 18.11.4-r4
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 18.11.4-r4
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 18.6.8-r4
- (no CPE)range: < 18.9.8-r5
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 18.11.4-r2
- (no CPE)range: < 18.11.4-r2
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 18.11.4-r2
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 18.6.8-r5
- (no CPE)range: < 18.7.7-r4
- (no CPE)range: < 18.9.8-r4
- (no CPE)range: < 18.9.8-r4
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 18.11.4-r4
- (no CPE)range: < 18.11.4-r4
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 18.8.11-r2
- (no CPE)range: < 18.7.7-r5
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: >= 15.5.0, < 18.10.8
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 18.8.11-r4
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 18.11.4-r2
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 18.11.4-r2
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 18.11.4-r2
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 18.11.4-r2
- (no CPE)range: < 18.7.7-r4
- (no CPE)range: < 18.9.8-r5
- (no CPE)range: < 18.9.8-r7
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 18.1.6-r25
- (no CPE)range: < 18.8.11-r4
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 18.11.4-r4
- (no CPE)range: < 18.1.6-r25
- (no CPE)range: < 19.0.2-r0
GitLab Inc./CE/EEllm-fuzzy
Range: >=15.5, <19.0.2

Patches

Vulnerability mechanics

References

about.gitlab.com/releases/2026/06/10/patch-release-gitlab-19-0-2-released/nvdRelease Notes
hackerone.com/reports/3655189nvdPermissions Required

News mentions

GitLab Patches 12 CVEs: Two Critical Account Takeover Bugs, Service Desk Impersonation, and Auth Bypasses
Vypr Intelligence · Jun 11, 2026
GitLab Patch Release: 19.0.2, 18.11.5, 18.10.8
GitLab Security Releases · Jun 10, 2026

cvss	0.565
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000