GO-2026-5567 Note Mark has a JWT Secret Weakness that allows Full Account Takeover via Token Forgery in github.com/enchant97/note-mark/backend

Note Mark has a JWT Secret Weakness that allows Full Account Takeover via Token Forgery in github.com/enchant97/note-mark/backend...

CVE-2026-11800

A flaw was found in Keycloak. This JWT algorithm confusion vulnerability in the JWT Authorization Grant flow allows an attacker with valid client credentials to bypass signature verification. By forging an assertion, the attacker can create unauthorized access tokens. This enables the attacker to...

GHSA-R9GP-7F88-9R54 Lemur: JWT verifier honors attacker-supplied alg, enabling ATO

Lemur 1.9.0: JWT verifier trusts attacker-supplied alg from token header — defense-in-depth gap; chain-dependent ATO with secret disclosure Vulnerability Summary Field | Value -- | -- Title | Lemur 1.9.0: JWT verifier trusts attacker-supplied alg from token header — defense-in-depth gap;...

CVE-2026-11800 Org.keycloak:keycloak-services: keycloak: authentication bypass via jwt algorithm confusion

A flaw was found in Keycloak. This JWT algorithm confusion vulnerability in the JWT Authorization Grant flow allows an attacker with valid client credentials to bypass signature verification. By forging an assertion, the attacker can create unauthorized access tokens. This enables the attacker to...

CVE-2026-11800

CVE-2026-11800 concerns Keycloak services and describes a JWT algorithm confusion vulnerability in the JWT Authorization Grant flow. The issue allows an attacker with valid client credentials to bypass signature verification by forging an assertion, enabling creation of unauthorized access tokens...

CVE-2026-11800 Org.keycloak:keycloak-services: keycloak: authentication bypass via jwt algorithm confusion

A flaw was found in Keycloak. This JWT algorithm confusion vulnerability in the JWT Authorization Grant flow allows an attacker with valid client credentials to bypass signature verification. By forging an assertion, the attacker can create unauthorized access tokens. This enables the attacker to...

CVE-2026-11800

A flaw was found in Keycloak. This JWT algorithm confusion vulnerability in the JWT Authorization Grant flow allows an attacker with valid client credentials to bypass signature verification. By forging an assertion, the attacker can create unauthorized access tokens. This enables the attacker to...

GO-2026-5391 ZITADEL: Missing Token Audience Validation (`aud`) in JWT IdP Provider in github.com/zitadel/zitadel

ZITADEL: Missing Token Audience Validation aud in JWT IdP Provider in github.com/zitadel/zitadel...

keycloak: Keycloak: Privilege escalation due to oversized subject_token JWT

A flaw was found in Keycloak. An authenticated user with low privileges can exploit this vulnerability by sending an oversized subjecttoken JSON Web Token JWT to the TokenEndpoint. When the token exceeds a 4000-character limit, it is silently dropped, causing the system to fall back to client...

Security Bulletin: Multiple vulnerabilities in IBM DevOps Solution Workbench

Summary Multiple vulnerabilities were addressed in IBM DevOps Solution Workbench version 5.2.0 Vulnerability Details CVEID:CVE-2026-40895 DESCRIPTION: follow-redirects is an open source, drop-in replacement for Node's http and https modules that automatically follows redirects. Prior to 1.16.0,...

PT-2026-52656

Name of the Vulnerable Software and Affected Versions Lemur versions prior to 1.9.0 Lemur version 1.9.0 Description The JWT verifier in the lemur/lemur/auth/service.py component trusts the alg header field from unverified tokens and passes it directly into the pyjwt.decode function via the...

CVE-2026-55759

Rocket.Chat Apple Sign-In had a JWT claims validation bypass prior to 8.5.1, 8.4.4, 8.3.6, 8.2.6, 8.1.6, 8.0.7, and 7.10.13. Any Apple-signed JWT with a non-empty iss could be accepted regardless of aud, exp, nbf, or nonce, enabling replay authentication if an attacker obtains a user’s identity t...

CVE-2026-55759 Rocket.Chat: Apple Sign-In skips JWT claims validation, allowing expired and cross-audience token replay

Rocket.Chat is an open-source, secure, fully customizable communications platform. Prior to 8.5.1, 8.4.4, 8.3.6, 8.2.6, 8.1.6, 8.0.7, and 7.10.13, Rocket.Chat's Apple Sign-In handler verifies JWT signatures but skips claims validation. Any Apple-signed JWT with a non-empty iss is accepted...

CVE-2026-55759 Rocket.Chat: Apple Sign-In skips JWT claims validation, allowing expired and cross-audience token replay

Rocket.Chat is an open-source, secure, fully customizable communications platform. Prior to 8.5.1, 8.4.4, 8.3.6, 8.2.6, 8.1.6, 8.0.7, and 7.10.13, Rocket.Chat's Apple Sign-In handler verifies JWT signatures but skips claims validation. Any Apple-signed JWT with a non-empty iss is accepted...

CVE-2026-55666

Rocket.Chat vulnerable pre-versions 8.5.1, 8.4.4, 8.3.6, 8.2.6, 8.1.6, 8.0.7, and 7.10.13 due to a flaw in apps/meteor/app/apple/server/loginHandler.ts where handleIdentityToken parses an Apple OAuth JWT. If the JWT lacks an email, the code falls back to accepting an arbitrary email value supplie...

CVE-2026-56269

Flowise before 3.1.0 npm package flowise, versions 3.0.13 and earlier uses a weak hardcoded default value 'Secre$t' for the TOKENHASHSECRET environment variable in packages/server/src/enterprise/utils/tempTokenUtils.ts when the variable is not configured. This secret derives the AES-256-CBC key...

CVE-2026-56269 Flowise - Weak Default Token Hash Secret in JWT Token Encryption

Flowise before 3.1.0 npm package flowise, versions 3.0.13 and earlier uses a weak hardcoded default value 'Secre$t' for the TOKENHASHSECRET environment variable in packages/server/src/enterprise/utils/tempTokenUtils.ts when the variable is not configured. This secret derives the AES-256-CBC key...

CVE-2026-56269

Flowise before 3.1.0 (npm package flowise;

CVE-2026-56269 Flowise - Weak Default Token Hash Secret in JWT Token Encryption

Flowise before 3.1.0 npm package flowise, versions 3.0.13 and earlier uses a weak hardcoded default value 'Secre$t' for the TOKENHASHSECRET environment variable in packages/server/src/enterprise/utils/tempTokenUtils.ts when the variable is not configured. This secret derives the AES-256-CBC key...

PT-2026-52117

Name of the Vulnerable Software and Affected Versions Rocket.Chat versions prior to 8.5.1 Rocket.Chat versions prior to 8.4.4 Rocket.Chat versions prior to 8.3.6 Rocket.Chat versions prior to 8.2.6 Rocket.Chat versions prior to 8.1.6 Rocket.Chat versions prior to 8.0.7 Rocket.Chat versions prior ...