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CVE-2026-41213 @node-oauth/oauth2-server: PKCE code_verifier ABNF not enforced in token exchange allows brute-force redemption of intercepted authorization codes

🗓️ 23 Apr 2026 18:33:42Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 2 Views

CVE-2026-41213: Token exchange accepts invalid code_verifier values for Proof Key for Code Exchange, enabling brute force redemption.

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08 Jul 2026 08:13Current
6Medium risk
Vulners AI Score6
CVSS 3.15.9
EPSS0.00259
2