Showing 2 vulnerabilities on this page for github.com/rs/cors

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VulnerabilityTitle and contextCVSSEPSSPoCsSignalsSTIX action

Denial of service via malicious preflight requests in github.com/rs/cors

Middleware causes a prohibitive amount of heap allocations when processing malicious preflight requests that include a Access-Control-Request-Headers (ACRH) header whose value contains many commas. This behavior can be abused by attackers to produce undue load on the middleware/server as an attempt to cause a denial of service.

CWE-1325CWE-770Aug 6, 2025
CVSS7.5v3.1EPSS0.572%PoCs0SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templatesSTIX

github.com/gofiber/fiber/v2 vulnerable to Origin Validation Error

The Olivier Poitrey Go CORS handler through 1.3.0 actively converts a wildcard CORS policy into reflecting an arbitrary Origin header value, which is incompatible with the CORS security design, and could lead to CORS misconfiguration security problems.

CWE-346Jan 28, 2019
CVSS5.9v3.0EPSS0.717%PoCs0SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templatesSTIX