Vulnerability · Published Apr 8, 2026 · Assigned by GitLab
CVE-2025-9484Missing Authorization in GitLab
Medium 4.3
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 0.3% (higher than 20% of all known vulnerabilities).
Severity (CVSS 3.1)4.3Medium
Exploit odds (30 days)0.3%top 80.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
GitLab has remediated an issue in GitLab EE affecting all versions from 16.6 before 18.8.9, 18.9 before 18.9.5, and 18.10 before 18.10.3 that under certain circumstances could have allowed an authenticated user to have access to other users' email addresses via certain GraphQL queries.
Affected products (as reported)
Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
References
- GitLab Issue #565363 issue-tracking, permissions-required
- HackerOne Bug Bounty Report #3303810 technical-description, exploit, permissions-required
- https://about.gitlab.com/releases/2026/04/08/patch-release-gitlab-18-10-3-released/