High severityRubyInsecure ConfigurationMEDIUM confidence
CORS Credentials Any Origin
A rack-cors resource sets credentials:true together with a wildcard origin, which browsers forbid and which leaks authenticated data if the reflected-origin variant is used (CWE-942).
Standards mapping
- OWASP Top 10
- A05:2021 - Security Misconfiguration
- OWASP ASVS
- V14.5.3 (L1)
Vulnerable vs. safe
Flagged by this check
resource "/secure/*", credentials: true, origins: origins("*")Passes - the safe pattern
resource "/account/*", credentials: true, origins: origins("https://app.example.com")Why it matters & how to fix it
A rack-cors resource sets credentials:true together with a wildcard origin, which browsers forbid and which leaks authenticated data if the reflected-origin variant is used (CWE-942). Never pair credentials:true with '*'; list specific trusted origins.
References
Rule ID integsec-ruby-cors-credentials-any-origin - engine: Opengrep - license: MIT - Copyright (c) IntegSec Inc.
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