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CVE-2026-41213

🗓️ 23 Apr 2026 18:33:42Reported by GitHub_MType 
cve
 cve
🔗 web.nvd.nist.gov👁 76 Views🌐 WEB

Code verifier weakness in token exchange permits brute-forcing intercepted authorization codes.

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[
  {
    "vendor": "node-oauth",
    "product": "node-oauth2-server",
    "versions": [
      {
        "version": "< 5.3.0",
        "status": "affected"
      }
    ]
  }
]
ParameterPositionPathDescriptionCWE
code_verifierrequest body/tokenThe token exchange endpoint accepts weak or short code_verifier values in S256 PKCE flows, allowing for online brute-force attacks to obtain an access token.CWE-1289, CWE-307

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