VYPR
Critical severity10.0NVD Advisory· Published Jul 14, 2026· Updated Jul 21, 2026

CVE-2026-56451

CVE-2026-56451

Description

Affected applications do not properly validate the algorithm specified in the JSON Web Token (JWT) header. This could allow an unauthenticated remote attacker to forge arbitrary JWT, bypass authentication mechanisms and impersonate any user including administrative accounts, potentially gaining full unauthorized access to the application.

Patches

Vulnerability mechanics

News mentions

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