CVE-2026-1660
Allocation of Resources Without Limits or Throttling in GitLab
Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 12.3 before 18.9.6, 18.10 before 18.10.4, and 18.11 before 18.11.1 that under certain conditions could have allowed an authenticated user to cause denial of service when importing issues due to improper input validation.
INFO
Published Date :
April 22, 2026, 5:16 p.m.
Last Modified :
April 23, 2026, 8:45 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | ceab7361-8a18-47b1-92ba-4d7d25f6715a | ||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update GitLab to version 18.9.6 or later.
- Update GitLab to version 18.10.4 or later.
- Update GitLab to version 18.11.1 or later.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-1660.
| URL | Resource |
|---|---|
| https://about.gitlab.com/releases/2026/04/22/patch-release-gitlab-18-11-1-released/ | Release Notes Vendor Advisory |
| https://gitlab.com/gitlab-org/gitlab/-/work_items/588200 | Broken Link |
| https://hackerone.com/reports/3518743 | Permissions Required |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-1660 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-1660
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-1660 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-1660 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Apr. 23, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* versions from (including) 18.10.0 up to (excluding) 18.10.4 *cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* versions from (including) 18.10.0 up to (excluding) 18.10.4 *cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* versions from (including) 12.3.0 up to (excluding) 18.9.6 *cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* versions from (including) 12.3.0 up to (excluding) 18.9.6 *cpe:2.3:a:gitlab:gitlab:18.11.0:*:*:*:community:*:*:* *cpe:2.3:a:gitlab:gitlab:18.11.0:*:*:*:enterprise:*:*:* Added Reference Type GitLab Inc.: https://about.gitlab.com/releases/2026/04/22/patch-release-gitlab-18-11-1-released/ Types: Release Notes, Vendor Advisory Added Reference Type GitLab Inc.: https://gitlab.com/gitlab-org/gitlab/-/work_items/588200 Types: Broken Link Added Reference Type GitLab Inc.: https://hackerone.com/reports/3518743 Types: Permissions Required -
New CVE Received by [email protected]
Apr. 22, 2026
Action Type Old Value New Value Added Description GitLab has remediated an issue in GitLab CE/EE affecting all versions from 12.3 before 18.9.6, 18.10 before 18.10.4, and 18.11 before 18.11.1 that under certain conditions could have allowed an authenticated user to cause denial of service when importing issues due to improper input validation. Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-770 Added Reference https://about.gitlab.com/releases/2026/04/22/patch-release-gitlab-18-11-1-released/ Added Reference https://gitlab.com/gitlab-org/gitlab/-/work_items/588200 Added Reference https://hackerone.com/reports/3518743