Vulnerability · Published Jun 25, 2026 · Assigned by GitLab
CVE-2026-2238Missing Authorization in GitLab
Medium 5.3
In plain English
A medium-severity missing authorization in GitLab from GitLab. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 41% of all known vulnerabilities).
Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)0.5%top 59.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.5 before 18.11.6, 19.0 before 19.0.3, and 19.1 before 19.1.1 that under certain conditions could have allowed an unauthenticated user to view confidential issue references on public projects due to improper authorization checks.
Affected products (as reported)
Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
References
- HackerOne Bug Bounty Report #3543011 technical-description, exploit, permissions-required
- https://gitlab.com/gitlab-org/gitlab/-/work_items/589186
- https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-1-1-released/