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Authlib Incomplete Algorithm-confusion Fix Permits HMAC Forgery With Prefixed Public Keys

🗓️ 28 Oct 2026 14:01:11Reported by Veracode Vulnerability DatabaseType 
veracode
 veracode
🔗 sca.analysiscenter.veracode.com👁 7 Views

Authlib incomplete algorithm-confusion fix allows HMAC forgery with prefixed public keys.

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Vulners
Node
authlibauthlibRange1.3.1–1.8.0python

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31 Oct 2026 08:23Current
7.2High risk
Vulners AI Score7.2
CVSS 3.17.4 - 9.1
EPSS0.00388
SSVC
7