PT-2026-35315

Summary The token exchange path accepts RFC7636-invalid code verifier values including one-character strings for S256 PKCE flows. Because short/weak verifiers are accepted and failed verifier attempts do not consume the authorization code, an attacker who intercepts an authorization code can...

CVE-2017-18924

oauth2-server aka node-oauth2-server through 3.1.1 implements OAuth 2.0 without PKCE. It does not prevent authorization code injection. This is similar to CVE-2020-7692. NOTE: the vendor states 'As RFC7636 is an extension, I think the claim in the Readme of "RFC 6749 compliant" is valid and not...