Authlib vulnerabilities
CVEs whose affected-version data names the Authlib package (pip). Each record lists the affected and patched versions; check a specific version with the dependency checker or POST /api/sbom.
11 CVEsRSS
CVE-2026-96760NoneAuthlib (v1.7.2 and below) contains a signature verification bypass vulnerability
Authlib (v1.7.2 and below) contains a signature verification bypass vulnerability. The JsonWebSignature.deserialize_json() method accepts a JSON Serialization JWS object and returns the payload as successfully verified without checking f…
CVE-2026-41479Medium· 5.4Authlib OAuth 2.0 has Open Redirect in Authorization API that allows attacker-controlled redirect_uri through unsupported response_type
Authlib OAuth 2.0 has Open Redirect in Authorization API that allows attacker-controlled redirect_uri through unsupported response_type
CVE-2026-44681Medium· 6.1Authlib OIDC Implicit/Hybrid Authorization Vulnerable to Open Redirect
Authlib OIDC Implicit/Hybrid Authorization Vulnerable to Open Redirect
CVE-2026-41425Medium· 5.4Authlib: Cross-site request forging when using cache
Authlib: Cross-site request forging when using cache
CVE-2026-28490HighAuthlib Vulnerable to JWE RSA1_5 Bleichenbacher Padding Oracle
Authlib Vulnerable to JWE RSA1_5 Bleichenbacher Padding Oracle
CVE-2026-28498High· 7.5PoCAuthlib is a Python library which builds OAuth and OpenID Connect servers
Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to version 1.6.9, a library-level vulnerability was identified in the Authlib Python library concerning the validation of OpenID Connect (OIDC) ID Tokens. S…
CVE-2026-27962Critical· 9.1PoCAuthlib is a Python library which builds OAuth and OpenID Connect servers
Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to version 1.6.9, a JWK Header Injection vulnerability in authlib's JWS implementation allows an unauthenticated attacker to forge arbitrary JWT tokens that…
CVE-2026-28802Critical· 9.8⚖ disputedAuthlib is a Python library which builds OAuth and OpenID Connect servers
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…
CVE-2025-68158Medium· 5.7Authlib has 1-click Account Takeover vulnerability
Authlib has 1-click Account Takeover vulnerability
CVE-2025-61920High· 7.5Authlib is vulnerable to Denial of Service via Oversized JOSE Segments
Authlib is vulnerable to Denial of Service via Oversized JOSE Segments
CVE-2025-62706Medium· 6.5Authlib : JWE zip=DEF decompression bomb enables DoS
Authlib : JWE zip=DEF decompression bomb enables DoS