SecuriTricks - CVE-2026-1659

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.

Product(s) Impacted

Vendor	Product	Versions
Gitlab	Gitlab	*

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-770

Allocation of Resources Without Limits or Throttling

The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor.

*CPE(s)

Affected systems and software identified for this CVE.

Type	Vendor	Product	Version	Update	Edition	Language	Software Edition	Target Software	Target Hardware	Other Information
a	gitlab	gitlab	/	/	/	/	community	/	/	/
a	gitlab	gitlab	/	/	/	/	enterprise	/	/	/
a	gitlab	gitlab	/	/	/	/	community	/	/	/
a	gitlab	gitlab	/	/	/	/	enterprise	/	/	/
a	gitlab	gitlab	/	/	/	/	community	/	/	/
a	gitlab	gitlab	/	/	/	/	enterprise	/	/	/

References

https://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-released/

https://gitlab.com/gitlab-org/gitlab/-/work_items/588201

https://hackerone.com/reports/3519824

CVSS Score

7.5 / 10

CVSS Data - 3.1

Attack Vector: NETWORK
Attack Complexity: LOW
Privileges Required: NONE
Scope: UNCHANGED
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

View Vector String

Timeline

Published: May 14, 2026, 6:16 a.m.
Last Modified: May 15, 2026, 7:58 p.m.

Status : Analyzed

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

[email protected]

CVE-2026-1659