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CVE-2025-12983
Good to know:
Date: November 15, 2025
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 16.9 before 18.3.6, 18.4 before 18.4.4, and 18.5 before 18.5.2 that could have allowed an authenticated attacker to cause a denial of service condition by submitting specially crafted markdown content with nested formatting patterns.
Severity Score
Related Resources (5)
Severity Score
Weakness Type (CWE)
Memory Allocation with Excessive Size Value
CWE-789Top Fix
Upgrade Version
Upgrade to version https://gitlab.com/gitlab-org/gitlab.git - v18.3.6;https://gitlab.com/gitlab-org/gitlab.git - v18.4.4-ee;https://gitlab.com/gitlab-org/gitlab.git - v18.5.2-ee
CVSS v3.1
| Base Score: |
|
|---|---|
| Attack Vector (AV): | NETWORK |
| Attack Complexity (AC): | HIGH |
| Privileges Required (PR): | LOW |
| User Interaction (UI): | NONE |
| Scope (S): | CHANGED |
| Confidentiality (C): | NONE |
| Integrity (I): | NONE |
| Availability (A): | LOW |