What is GHSA-77hj-c554-4343?

GHSA-77hj-c554-4343 is a security advisory published by GitHub Security Advisories with Medium severity. GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.9 before 18.10.7,...

Which CVE IDs does GHSA-77hj-c554-4343 cover?

GHSA-77hj-c554-4343 covers the following CVE IDs: CVE-2026-9807. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-77hj-c554-4343?

GHSA-77hj-c554-4343 has a CVSS v3 base score of 4.3, published by GitHub Security Advisories.

GHSA-77hj-c554-4343MediumCVSS 4.3

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.9 before 18.10.7,...

Vendor

GitHub Security Advisories

Published

May 28, 2026

Last Modified

May 28, 2026

🔗 CVE IDs covered (1)

CVE-2026-9807 →

📋 Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.9 before 18.10.7, 18.11 before 18.11.4, and 19.0 before 19.0.1 that under certain conditions could have allowed a blocked Project Access Token to continue accessing private resources due to incorrect authorization enforcement.

🔗 References (5)

https://nvd.nist.gov/vuln/detail/CVE-2026-9807
https://hackerone.com/reports/3554993
https://about.gitlab.com/releases/2026/05/27/patch-release-gitlab-19-0-1-released
https://gitlab.com/gitlab-org/gitlab/-/work_items/590694
https://github.com/advisories/GHSA-77hj-c554-4343