CVE-2026-1659
High
Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 9.0 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that could have allowed an unauthenticated user to cause denial of service by sending specially crafted requests due to insufficient input validation.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Gitlab
PublishedMay 14, 2026
First seenMay 14, 2026
Weakness typeCWE-770Allocation of resources without limits
How to fix
Update
- gitlab gitlab18.9.7, 18.10.6, 18.11.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| gitlab gitlab | 9.0.0 ≤ v < 18.9.7, 18.10.0 ≤ v < 18.10.6, 18.11.0 ≤ v < 18.11.3 | 18.9.7, 18.10.6, 18.11.3 |
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