CVE-2026-41213: node-oauth2-server, логическа грешка

Описание

Оригинално описание

@node-oauth/oauth2-server is a module for implementing an OAuth2 server in Node.js. 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 brute-force code_verifier guesses online until token issuance succeeds.

Засегнати продукти

• node-oauth node-oauth2-server: < 5.3.0

Вид слабост

• CWE-307 Неправилно ограничаване на прекомерни опити за автентикация
• CWE-1289 Improper Validation of Unsafe Equivalence in Input

История

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-41213
• https://nvd.nist.gov/vuln/detail/CVE-2026-41213
• https://github.com/node-oauth/node-oauth2-server/security/advisories/GHSA-jhm7-29pj-4xvf