PyJWT: Non-canonical signature segments enable raw-token revocation bypass

SummaryPyJWT 2.13.0 accepts compact JWS signature segments containing characters thatare not in the Base64URL alphabet. Appending !!!! to a valid signature doesnot change the decoded signature bytes or authenticated claims, but it changesthe serialized token and its SHA-256 hash. An application...

CVE-2026-102269 PyJWT: Non-canonical signature segments enable raw-token revocation bypass

PyJWT is a Python implementation of JSON Web Token standards. Prior to 2.14.0, PyJWT signature segment is affected because signature segment decoding accepts characters outside the canonical Base64URL representation. This occurs when non-Base64URL characters are appended to a valid compact JWS...

Security Bulletin: Maximo AI Service uses multiple third party dependencies which are vulnerable to multiple CVEs.

Summary Maximo AI Service uses joserfc-1.6.4-py3-none-any.whl, HdrHistogram-2.2.2.jar, and logback-core-1.5.32.jar which are vulnerable to CVE-2026-62995, CVE-2026-14683, CVE-2026-14684, CVE-2026-10532, and CVE-2026-9828. This bulletin contains information regarding the vulnerability and its fix...

Security Bulletin: Multiple vulnerabilities in IBM MQ Agent images

Summary Multiple vulnerabilities were addressed in IBM MQ Agent images Vulnerability Details CVEID:CVE-2026-62995 DESCRIPTION: joserfc is a Python library that provides an implementation of several JSON Object Signing and Encryption JOSE standards. in versions 1.7.1 and prior, joserfc accepts JWT...

CVE-2026-79664

Ech0 versions before 4.7.3 contain an access token revocation bypass. When tokens are created with the never-expire option, three independent revocation mechanisms all fail: the logout handler panics on a nil ExpiresAt field, RevokeToken skips when remainTTL is zero, and the admin delete action d...

CVE-2026-79664 Ech0 before 4.7.3 Access Token Revocation Bypass

Ech0 before 4.7.3 fails to properly revoke access tokens created with never-expire option, allowing attackers to maintain perpetual authenticated access after token theft. Three independent revocation mechanisms fail: logout panics on nil ExpiresAt field, RevokeToken skips when remainTTL is zero,...

CVE-2026-79664 Ech0 before 4.7.3 Access Token Revocation Bypass

Ech0 before 4.7.3 fails to properly revoke access tokens created with never-expire option, allowing attackers to maintain perpetual authenticated access after token theft. Three independent revocation mechanisms fail: logout panics on nil ExpiresAt field, RevokeToken skips when remainTTL is zero,...

CVE-2026-68481

A flaw was found in Apache CXF. This vulnerability affects the DefaultEncryptingOAuthDataProvider, where revoked access and refresh tokens can still be successfully decrypted and reported as active. This bypasses the intended token revocation process, potentially allowing unauthorized access to...

joserfc: joserfc: JWT Malleability via Non-Standard Padding

A flaw was found in joserfc, a Python library for JSON Object Signing and Encryption JOSE standards. This vulnerability allows the library to accept JSON Web Tokens JWTs that include non-standard trailing padding. An attacker could exploit this to create malleable JWTs, potentially bypassing...

CVE-2026-62995: Insufficient Verification of Data Authenticity

joserfc is a Python library that provides an implementation of several JSON Object Signing and Encryption JOSE standards. in versions 1.7.1 and prior, joserfc accepts JWTs with trailing padding == which are not conforming to the JOSE specifications. This leads to malleability of the JWTs when...

CVE-2016-4911: Improper Access Control

The Fernet Token Provider in OpenStack Identity Keystone 9.0.x before 9.0.1 mitaka allows remote authenticated users to prevent revocation of a chain of tokens and bypass intended access restrictions by rescoping a token...

CVE-2014-2237: Undefined Security Weakness

The memcache token backend in OpenStack Identity Keystone 2013.1 through 2.013.1.4, 2013.2 through 2013.2.2, and icehouse before icehouse-3, when issuing a trust token with impersonation enabled, does not include this token in the trustee's token-index-list, which prevents the token from being...