CVE-2026-54605

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::Consumertokenrequest parses the raw Location header of a 300 to 399 redirect returned by the OAuth server and follows the redirect recursively, which can mutate the consumer's...

CVE-2026-54605

Summary: CVE-2026-54605 affects the Ruby OAuth gem (versions 0.5.5–1.1.5). The flaw in OAuth::Consumer#token_request follows 300–399 redirects by parsing the raw Location header and recursing, which can mutate the gem’s site/configuration and disclose signed OAuth request metadata (including the ...