🔐 CVE Alert

CVE-2025-9484

MEDIUM 4.3

Missing Authorization in GitLab

CVSS Score
4.3
EPSS Score
0.0%
EPSS Percentile
0th

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.

CWE CWE-862
Vendor gitlab
Product gitlab
Ecosystems
Industries
Technology
Published Apr 8, 2026
Last Updated Apr 9, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

Affected Versions

GitLab / GitLab
16.6 < 18.8.9 18.9 < 18.9.5 18.10 < 18.10.3

References

NVD ↗ CVE.org ↗ EPSS Data ↗
gitlab.com: https://gitlab.com/gitlab-org/gitlab/-/issues/565363 hackerone.com: https://hackerone.com/reports/3303810 about.gitlab.com: https://about.gitlab.com/releases/2026/04/08/patch-release-gitlab-18-10-3-released/

Credits

Thanks [mateuszek](https://hackerone.com/mateuszek) for reporting this vulnerability through our HackerOne bug bounty program