ruby-oauth vulnerabilities

Products

• oauth 1
• oauth2 1

Latest ruby-oauth CVEs

Newest publication first

1. CVE-2026-54603 OAuth2::Client#request: Protocol-relative redirect Location overrides authority, leaking bearer Authorization to attacker host

   Published 2026-07-28

   High·CVSS 8.6 EPSS 0.45%

   OAuth2 is a Ruby wrapper for the OAuth 2.0 and 2.1 authorization frameworks, including OpenID Connect (OIDC). From 0.4.0 to 2.0.21, a protocol-relative redirect Location returned to OAuth2::Client#request overrides the request authority, so the bearer Authorization header is sent...

2. CVE-2026-54605 OAuth: Cross-origin token-request redirects can expose signed request metadata

   Published 2026-07-28

   High·CVSS 7.2 EPSS 0.19%

   OAuth is a Ruby wrapper for the OAuth 1.0 and 1.0a protocols, providing clients and servers. From 0.5.5 to 1.1.5, OAuth::Consumer#token_request parses the raw Location header of a 300 to 399 redirect returned by the OAuth server and follows the redirect recursively, which can mut...

Sources: CVE.org, NVD, CISA KEV, FIRST EPSS, OSV and public exploit-reference metadata. Product matching comes from the published CVE records. A proof-of-concept means public code exists; it is not evidence of exploitation.