Vulnerability · Published Jun 11, 2026 · Assigned by GitLab
CVE-2026-3553Incorrect Authorization in GitLab
Low 3.1
In plain English
A low-severity incorrect 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 0.2% (higher than 15% of all known vulnerabilities).
Severity (CVSS 3.1)3.1Low
Exploit odds (30 days)0.2%top 85.4% 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 12.0 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 to access confidential issue details due to incorrect authorization checks.
Affected products (as reported)
Weakness: CWE-863 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
References
- HackerOne Bug Bounty Report #3578216 technical-description, exploit, permissions-required
- https://gitlab.com/gitlab-org/gitlab/-/work_items/592295
- https://about.gitlab.com/releases/2026/06/10/patch-release-gitlab-19-0-2-released/