SUSE CVE-2026-28802

Authlib is a Python library which builds OAuth and OpenID Connect servers. From version 1.6.5 to before version 1.6.7, previous tests involving passing a malicious JWT containing alg: none and an empty signature was passing the signature verification step without any changes to the application co...

CVE-2026-28802

Authlib is a Python library which builds OAuth and OpenID Connect servers. From version 1.6.5 to before version 1.6.7, previous tests involving passing a malicious JWT containing alg: none and an empty signature was passing the signature verification step without any changes to the application co...

CVE-2026-28802

Authlib is a Python library which builds OAuth and OpenID Connect servers. From version 1.6.5 to before version 1.6.7, previous tests involving passing a malicious JWT containing alg: none and an empty signature was passing the signature verification step without any changes to the application co...

PT-2026-23089

Name of the Vulnerable Software and Affected Versions Authlib versions 1.6.5 through 1.6.7 Description Authlib, a Python library for building OAuth and OpenID Connect servers, had a flaw in signature verification. Specifically, tests involving a malicious JWT with 'alg: none' and an empty signatu...

CVE-2026-27804

Parse Server versions prior to 8.6.3 and 9.1.1-alpha.4 are vulnerable to unauthenticated login via forged Google tokens (alg: none). The root cause is trusting the JWT header for algorithm selection; the fix hardcodes RS256 and shifts key validation to jwks-rsa, rejecting unknown key IDs. Affecte...

jose-swift has JWT Signature Verification Bypass via None Algorithm

Summary An authentication bypass vulnerability allows any unauthenticated attacker to forge arbitrary JWT tokens by setting "alg": "none" in the token header. The library's verification functions immediately return true for such tokens without performing any cryptographic verification, enabling...

GHSA-88Q6-JCJG-HVMW jose-swift has JWT Signature Verification Bypass via None Algorithm

Summary An authentication bypass vulnerability allows any unauthenticated attacker to forge arbitrary JWT tokens by setting "alg": "none" in the token header. The library's verification functions immediately return true for such tokens without performing any cryptographic verification, enabling...

EUVD-2026-1693

jose-swift has JWT Signature Verification Bypass via None Algorithm...

jose-swift has JWT Signature Verification Bypass via None Algorithm

An authentication bypass vulnerability allows any unauthenticated attacker to forge arbitrary JWT tokens by setting "alg": "none" in the token header. The library's verification functions immediately return true for such tokens without performing any cryptographic verification, enabling complete...

CVE-2025-61152

python-jose thru 3.3.0 allows JWT tokens with 'alg=none' to be decoded and accepted without any cryptographic signature verification. A malicious actor can craft a forged token with arbitrary claims e.g., isadmin=true and bypass authentication checks, leading to privilege escalation or unauthoriz...

CVE-2025-61152

The python-jose library (through version 3.3.0 ) allows JWT tokens using 'alg=none' to be decoded and accepted without cryptographic signature verification. This allows an attacker to craft forged tokens with arbitrary claims to bypass authentication, potentially leading to privilege escalation o...

EUVD-2025-32012

Malicious code in bioql PyPI...

EUVD-2022-0744

Malicious code in bioql PyPI...

EUVD-2025-31394

Malicious code in bioql PyPI...

CVE-2025-59685

Kazaar 1.25.12 allows a JWT with none in the alg field...

CVE-2025-59685: Undefined Security Weakness

Kazaar 1.25.12 allows a JWT with none in the alg field...

CVE-2025-59685

Kazaar version 1.25.12 , a print marketing fulfillment platform, is vulnerable to an authentication bypass. The software incorrectly allows the use of a JSON Web Token (JWT) where the alg field is set to none . This flaw compromises the integrity of the authentication process. No information rega...

CVE-2025-59685

Kazaar 1.25.12 allows a JWT with none in the alg field...

CVE-2025-59934

Formbricks is an open source qualtrics alternative. Prior to version 4.0.1, Formbricks is missing JWT signature verification. This vulnerability stems from a token validation routine that only decodes JWTs jwt.decode without verifying their signatures. Both the email verification token login path...

CVE-2025-59934 Formbricks missing JWT signature verification

Formbricks is an open source qualtrics alternative. Prior to version 4.0.1, Formbricks is missing JWT signature verification. This vulnerability stems from a token validation routine that only decodes JWTs jwt.decode without verifying their signatures. Both the email verification token login path...