CVE-2026-1101
Last modified
CVE-2026-1101 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. GitLab has remediated an issue in GitLab EE affecting all versions from 18.2 before 18.8.9, 18.9 before 18.9.5, and 18.10 before 18.10.3 that could have allowed an authenticated user to cause denial of service to the GitLab instance due to improper input validation in GraphQL queries.. EPSS estimates a 0.41% chance of exploitation in the next 30 days.
Description
GitLab has remediated an issue in GitLab EE affecting all versions from 18.2 before 18.8.9, 18.9 before 18.9.5, and 18.10 before 18.10.3 that could have allowed an authenticated user to cause denial of service to the GitLab instance due to improper input validation in GraphQL queries.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Gitlab | Gitlab | >= 18.2, < 18.8.9 |
| Gitlab | Gitlab | >= 18.9.0, < 18.9.5 |
| Gitlab | Gitlab | >= 18.10.0, < 18.10.3 |
References
- https://about.gitlab.com/releases/2026/04/08/patch-release-gitlab-18-10-3-released/Release Notes, Vendor Advisory
- https://hackerone.com/reports/3460228Permissions Required
Timeline
- Published
- Last Modified
- Status
- Analyzed
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