Impact
The vulnerability allows an attacker to supply a regular expression that is processed by AntPathMatcher, leading to a Regular Expression Denial of Service. The malicious pattern can cause excessive CPU consumption and eventual application unavailability, classified as a denial of service weakness (CWE-1333).
Affected Systems
Spring Framework is affected in versions 7.0.0 through 7.0.7, 6.2.0 through 6.2.18, 6.1.0 through 6.1.27, and 5.3.0 through 5.3.48.
Risk and Exploitability
The CVSS score of 3.7 indicates moderate severity. EPSS is not available and the vulnerability is not listed in the CISA KEV catalog. An attacker would need the ability to supply a crafted pattern to methods such as match, matchStart, or extractUriTemplateVariables, which may be achieved through input exposed via URLs or API endpoints. If exploited, the attacker could cause high CPU usage and potential service interruption, affecting application availability.
OpenCVE Enrichment