CVE-2026-41213 - CERT CVE
ID CVE-2026-41213
Sažetak @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.
Reference
CVSS
Base: 5.9
Impact: 3.6
Exploitability:2.2
Pristup
VektorSloženostAutentikacija
NETWORK HIGH NONE
Impact
PovjerljivostCjelovitostDostupnost
HIGH NONE NONE
CVSS vektor CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Zadnje važnije ažuriranje 25-04-2026 - 02:16
Objavljeno 23-04-2026 - 19:17