CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
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
EPSS
Percentile
38.4%
gitlab is vulnerable to Regular Expression Denial Of Service (ReDoS). The vulnerability arises from insecure regex patterns used in the library, enabling an attacker to crash the application by sending maliciously crafted payloads that use ProjectReferenceFilter to the preview_markdown endpoint.