CVE-2026-1403

MEDIUM CVSS 3.1: 6.5 EPSS 0.33%
Updated Oct 09, 2026
GitLab
Parameter Value
CVSS 6.5 (MEDIUM)
Affected Versions before 18.8.9
Type CWE-770 (Allocation Without Limits)
Vendor GitLab
Public PoC No

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 11.7 before 18.8.9, 18.9 before 18.9.5, and 18.10 before 18.10.3 that when importing CSV files could have allowed an authenticated user to cause denial of service to Sidekiq workers due to improper validation of CSV file structure.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
High
Complete denial of service

CVSS Vector v3.1

Vulnerable Products

gitlab:gitlab