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...

CVE-2026-33204 SimpleJWT has an Unauthenticated Denial of Service via JWE header tampering

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 SimpleJWT has an Unauthenticated Denial of Service via JWE header tampering

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...

Pac4J JWT 4.x < 4.5.9 / 5.x < 5.7.9 / 6.x < 6.3.3 Authentication Bypass

The version of Pac4J JWT installed on the remote host is affected by an authentication bypass vulnerability. - pac4j-jwt versions prior to 4.5.9, 5.7.9, and 6.3.3 contain an authentication bypass vulnerability in JwtAuthenticator when processing encrypted JWTs that allows remote attackers to forg...

SimpleJWT 资源管理错误漏洞

SimpleJWT is a JSON Web Token library written in PHP by Kelvin Mo as a personal project. Versions of SimpleJWT prior to 1.1.1 contained a resource management vulnerability. This vulnerability arises from the use of the PBES2 algorithm, allowing unauthenticated attackers to perform denial-of-servi...

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...

PT-2026-26212

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...

Timing Attack

Overview authlib is a library in building OAuth and OpenID Connect servers. Affected versions of this package are vulnerable to Timing Attack via the unwrap length check in jwealgs.py. An attacker can recover the CEK and decrypt or forge JWE tokens by sending malformed RSA15 ciphertexts and...

CVE-2026-28490

Authlib (Python) RSA1_5 JWE handling is vulnerable to Bleichenbacher padding oracle attacks. The issue stems from a length check in RSAAlgorithm.unwrap() that raises a distinct exception when padding is invalid, destroying the cryptographic BLEichenbacher mitigation provided by cryptography v46.0...

GHSA-7432-952R-CW78 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,...

Linux Distros Unpatched Vulnerability : CVE-2026-28490

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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 i...

Exploit for CVE-2026-29000

CVE-2026-29000 — pac4j-jwt PlainJWT-in-JWE Authentication Bypa...

Exploit for CVE-2026-29000

CVE-2026-29000: pac4j-jwt Authentication Bypass POC This repo...

Exploit for CVE-2026-29000

CVE-2026-29000 – pac4j JWT Authentication Bypass Python PoC...

Improper Verification of Cryptographic Signature

Overview Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature in the JwtAuthenticator component when handling encrypted JWTs. An attacker can gain unauthorized access by crafting a JWE-wrapped PlainJWT with arbitrary claims if they possess the...

Linux Distros Unpatched Vulnerability : CVE-2026-27932

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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...

CVE-2026-29000

pac4j-jwt versions prior to 4.5.9, 5.7.9, and 6.3.3 contain an authentication bypass vulnerability in JwtAuthenticator when processing encrypted JWTs that allows remote attackers to forge authentication tokens. Attackers who possess the server's RSA public key can create a JWE-wrapped PlainJWT wi...

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

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...

joserfc 安全漏洞

Joserfc is a Python library developed by Authlib. Joserfc versions 1.6.2 and earlier have security vulnerabilities. These vulnerabilities stem from the lack of verification or restrictions on the p2c parameter value in the JWE token. This allows unverified attackers to cause denial-of-service...