Vulnerability Report

CVE-2026-1660

Title: DoS via improper input validation during issue import

DoS

Proof Of Concept

No public PoC currently indexed for CVE-2026-1660.

CWE Category CWE-770

Published Date Apr 22, 2026

Modified Date Apr 23, 2026

Exploit Status Not Found

Score 6.5 CVSS v3.1

Exploit Probability (EPSS)

0.08%

Vulnerability Summary

CVE-2026-1660: 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.

Impacted Vendors

gitlab 1

jenkins 1

Reference Links

https://about.gitlab.com/releases/2026/04/22/patch-release-gitlab-18-11-1-released/ https://gitlab.com/gitlab-org/gitlab/-/work_items/588200 https://hackerone.com/reports/3518743

CVSS v3.1

Source Entity [email protected]

Severity MEDIUM

6.5

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

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

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2026-1660 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

April 23, 2026 MODIFIED

Vulnerability data updated via NVD.

April 23, 2026 MODIFIED

Vulnerability data updated via NVD.

April 22, 2026 MODIFIED

Vulnerability data updated via NVD.

April 22, 2026 MODIFIED

Vulnerability data updated via NVD.

Attack Vector Matrix

Access Vector NETWORK

Complexity LOW

Privileges N/A

Interaction NONE

CVSS Vector String


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

Affected Stack

No specific products linked.