The vulnerability of the JOSE library Authlib implementation for OAuth and OpenID Connect servers allows a perpetrator to induce a service failure.

The vulnerability of the JOSE library Authlib implementation for OAuth and OpenID Connect servers is related to insufficient validation of input data. Exploiting this vulnerability can allow a malicious actor to cause service failures...

CVE-2026-33204

SimpleJWT is a simple JSON web token library written in PHP. Prior to version 1.1.1, an unauthenticated attacker can perform a Denial of Service via JWE header tampering when PBES2 algorithms are used. Applications that call JWE::decrypt on attacker-controlled JWEs using PBES2 algorithms are...

EUVD-2026-13871

SimpleJWT is a simple JSON web token library written in PHP. Prior to version 1.1.1, an unauthenticated attacker can perform a Denial of Service via JWE header tampering when PBES2 algorithms are used. Applications that call JWE::decrypt on attacker-controlled JWEs using PBES2 algorithms are...

CVE-2026-33204

CVE-2026-33204 affects the PHP library SimpleJWT prior to v1.1.1. An unauthenticated attacker can trigger a Denial of Service by tampering JWE headers when PBES2 algorithms are used, causing excessive PBKDF2 iterations during JWE::decrypt() on attacker-controlled JWEs. The issue is fixed in v1.1....

GHSA-XW36-67F8-339X SimpleJWT has an Unauthenticated Denial of Service via JWE header tampering

Summary An unauthenticated attacker can perform a Denial of Service via JWE header tampering when PBES2 algorithms are used. Applications that call JWE::decrypt on attacker-controlled JWEs using PBES2 algorithms are affected. Details PHP version: PHP 8.4.11 SimpleJWT version: v1.1.0 The relevant...

SUSE CVE-2026-28490

Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to version 1.6.9, a cryptographic padding oracle vulnerability was identified in the Authlib Python library concerning the implementation of the JSON Web Encryption JWE RSA15 key management algorithm. Authlib registe...

CVE-2026-28490

A flaw was found in Authlib, a Python library for building OAuth and OpenID Connect servers. This cryptographic padding oracle vulnerability, affecting the JSON Web Encryption JWE RSA15 key management algorithm, could allow a remote attacker to decrypt sensitive information. The vulnerability...

PYSEC-2026-2116

Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to version 1.6.9, a cryptographic padding oracle vulnerability was identified in the Authlib Python library concerning the implementation of the JSON Web Encryption JWE RSA15 key management algorithm. Authlib registe...

UBUNTU-CVE-2026-28490

Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to version 1.6.9, a cryptographic padding oracle vulnerability was identified in the Authlib Python library concerning the implementation of the JSON Web Encryption JWE RSA15 key management algorithm. Authlib registe...

CVE-2026-28490 Authlib Vulnerable to JWE RSA1_5 Bleichenbacher Padding Oracle

Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to version 1.6.9, a cryptographic padding oracle vulnerability was identified in the Authlib Python library concerning the implementation of the JSON Web Encryption JWE RSA15 key management algorithm. Authlib registe...

CVE-2026-28490 Authlib Vulnerable to JWE RSA1_5 Bleichenbacher Padding Oracle

Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to version 1.6.9, a cryptographic padding oracle vulnerability was identified in the Authlib Python library concerning the implementation of the JSON Web Encryption JWE RSA15 key management algorithm. Authlib registe...

CVE-2026-28490 Authlib Vulnerable to JWE RSA1_5 Bleichenbacher Padding Oracle

Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to version 1.6.9, a cryptographic padding oracle vulnerability was identified in the Authlib Python library concerning the implementation of the JSON Web Encryption JWE RSA15 key management algorithm. Authlib registe...

CVE-2026-28490

Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to version 1.6.9, a cryptographic padding oracle vulnerability was identified in the Authlib Python library concerning the implementation of the JSON Web Encryption JWE RSA15 key management algorithm. Authlib registe...

EUVD-2026-12480

Authlib Vulnerable to JWE RSA15 Bleichenbacher Padding Oracle...

Authlib Vulnerable to JWE RSA1_5 Bleichenbacher Padding Oracle

Executive Summary A cryptographic padding oracle vulnerability was identified in the Authlib Python library concerning the implementation of the JSON Web Encryption JWE RSA15 key management algorithm. Authlib registers RSA15 in its default algorithm registry without requiring explicit opt-in,...

Authlib 加密问题漏洞

Authlib is an open-source library developed by Authlib, designed as a ultimate Python library for building OAuth and OpenID Connect servers. Versions of Authlib prior to 1.6.9 contained a security vulnerability related to encryption. This vulnerability stemmed from a cryptographic padding mechani...

📄 joserfc JWE PBES2 1.6.2 Denial of Service

A denial of service condition can occur in applications using the joserfc library when processing malicious JSON Web Encryption tokens that use the PBES2-HS256+A128KW algorithm...

Exploit for CVE-2026-29000

CVE-2026-29000: pac4j-jwt JwtAuthenticator authentication bypa...

SUSE CVE-2026-27932

joserfc is a Python library that provides an implementation of several JSON Object Signing and Encryption JOSE standards. In 1.6.2 and earlier, a resource exhaustion vulnerability in joserfc allows an unauthenticated attacker to cause a Denial of Service DoS via CPU exhaustion. When the library...

CVE-2026-27932

A flaw was found in joserfc, a Python library for JSON Object Signing and Encryption JOSE standards. An unauthenticated attacker can cause a Denial of Service DoS by exploiting a resource exhaustion vulnerability. This occurs when the library decrypts a JSON Web Encryption JWE token using...