Threats Tagged 'cve-2026-82454'
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Threats Tagged 'cve-2026-82454'
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CVE-2026-82454: Improper Verification of Cryptographic Signature in omnivore-app omnivoreCVE-2026-82454 0 The Omnivore API (packages/api) before the fix in commit abf53d6 contains an authentication bypass in Apple sign-in token verification. The decodeAppleToken function extracted the 'alg' field from the attacker-supplied JWT header and passed it as the sole allowed algorithm to jwt.verify(). Using jsonwebtoken v8 (which does not validate key/algorithm compatibility), an attacker can set alg=HS256 and sign a forged token using Apple's publicly available RSA public key as the HMAC secret, bypassing signature verification and impersonating any Apple-linked account. Join the discussion | CVE Database V5 | 08/29/2026, 13:47:56 UTC Added: 08/29/2026, 13:52:41 UTC |
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