Regular Expression Denial Of Service

fast-jwt is vulnerable to Regular Expression Denial of Service. The vulnerability is due to the library allowing regular expressions in claim validation, where a crafted JWT can trigger catastrophic backtracking in the JavaScript regex engine, resulting in significant CPU consumption during...

CVE-2026-23552

Cross-Realm Token Acceptance Bypass in KeycloakSecurityPolicy Apache Camel Keycloak component. The Camel-Keycloak KeycloakSecurityPolicy does not validate the iss issuer claim of JWT tokens against the configured realm. A token issued by one Keycloak realm is silently accepted by a policy...

CVE-2026-25537

jsonwebtoken is a JWT lib in rust. Prior to version 10.3.0, there is a Type Confusion vulnerability in jsonwebtoken, specifically, in its claim validation logic. When a standard claim such as nbf or exp is provided with an incorrect JSON type Like a String instead of a Number, the library’s...

DEBIAN-CVE-2026-25537

jsonwebtoken is a JWT lib in rust. Prior to version 10.3.0, there is a Type Confusion vulnerability in jsonwebtoken, specifically, in its claim validation logic. When a standard claim such as nbf or exp is provided with an incorrect JSON type Like a String instead of a Number, the library’s...

CVE-2026-25537

jsonwebtoken is a JWT lib in rust. Prior to version 10.3.0, there is a Type Confusion vulnerability in jsonwebtoken, specifically, in its claim validation logic. When a standard claim such as nbf or exp is provided with an incorrect JSON type Like a String instead of a Number, the library’s...

CVE-2026-25537 jsonwebtoken has Type Confusion that leads to potential authorization bypass

jsonwebtoken is a JWT lib in rust. Prior to version 10.3.0, there is a Type Confusion vulnerability in jsonwebtoken, specifically, in its claim validation logic. When a standard claim such as nbf or exp is provided with an incorrect JSON type Like a String instead of a Number, the library’s...

EUVD-2026-5334

jsonwebtoken is a JWT lib in rust. Prior to version 10.3.0, there is a Type Confusion vulnerability in jsonwebtoken, specifically, in its claim validation logic. When a standard claim such as nbf or exp is provided with an incorrect JSON type Like a String instead of a Number, the library’s...

CVE-2026-25537 jsonwebtoken has Type Confusion that leads to potential authorization bypass

jsonwebtoken is a JWT lib in rust. Prior to version 10.3.0, there is a Type Confusion vulnerability in jsonwebtoken, specifically, in its claim validation logic. When a standard claim such as nbf or exp is provided with an incorrect JSON type Like a String instead of a Number, the library’s...

CVE-2026-25537

jsonwebtoken is a JWT lib in rust. Prior to version 10.3.0, there is a Type Confusion vulnerability in jsonwebtoken, specifically, in its claim validation logic. When a standard claim such as nbf or exp is provided with an incorrect JSON type Like a String instead of a Number, the library’s...

GHSA-H395-GR6Q-CPJC jsonwebtoken has Type Confusion that leads to potential authorization bypass

Summary: It has been discovered that there is a Type Confusion vulnerability in jsonwebtoken, specifically, in its claim validation logic. When a standard claim such as nbf or exp is provided with an incorrect JSON type Like a String instead of a Number, the library’s internal parsing mechanism...

jsonwebtoken has Type Confusion that leads to potential authorization bypass

Summary: It has been discovered that there is a Type Confusion vulnerability in jsonwebtoken, specifically, in its claim validation logic. When a standard claim such as nbf or exp is provided with an incorrect JSON type Like a String instead of a Number, the library’s internal parsing mechanism...

PT-2026-6431

Summary: It has been discovered that there is a Type Confusion vulnerability in jsonwebtoken, specifically, in its claim validation logic. When a standard claim such as nbf or exp is provided with an incorrect JSON type Like a String instead of a Number, the library’s internal parsing mechanism...

PT-2026-6316

Name of the Vulnerable Software and Affected Versions jsonwebtoken versions prior to 10.3.0 Description A Type Confusion issue exists in jsonwebtoken, specifically within its claim validation logic. When a standard claim, such as 'nbf' or 'exp', is provided with an incorrect JSON type like a Stri...

EUVD-2023-2796

Malicious code in bioql PyPI...

CVE-2023-36820

Micronaut Security is a security solution for applications. Prior to versions 3.1.2, 3.2.4, 3.3.2, 3.4.3, 3.5.3, 3.6.6, 3.7.4, 3.8.4, 3.9.6, 3.10.2, and 3.11.1, IdTokenClaimsValidator skips aud claim validation if token is issued by same identity issuer/provider. Any OIDC setup using Micronaut...

CVE-2025-30144

fast-jwt provides fast JSON Web Token JWT implementation. Prior to 5.0.6, the fast-jwt library does not properly validate the iss claim based on the RFC 7519. The iss issuer claim validation within the fast-jwt library permits an array of strings as a valid iss value. This design flaw enables a...

CVE-2025-30144

fast-jwt provides fast JSON Web Token JWT implementation. Prior to 5.0.6, the fast-jwt library does not properly validate the iss claim based on the RFC 7519. The iss issuer claim validation within the fast-jwt library permits an array of strings as a valid iss value. This design flaw enables a...

CVE-2025-30144 Fast-JWT Improperly Validates iss Claims

fast-jwt provides fast JSON Web Token JWT implementation. Prior to 5.0.6, the fast-jwt library does not properly validate the iss claim based on the RFC 7519. The iss issuer claim validation within the fast-jwt library permits an array of strings as a valid iss value. This design flaw enables a...

CVE-2025-30144 Fast-JWT Improperly Validates iss Claims

fast-jwt provides fast JSON Web Token JWT implementation. Prior to 5.0.6, the fast-jwt library does not properly validate the iss claim based on the RFC 7519. The iss issuer claim validation within the fast-jwt library permits an array of strings as a valid iss value. This design flaw enables a...

CVE-2025-30144

CVE-2025-30144 affects the fast-jwt library prior to 5.0.6, where iss validation incorrectly accepts an array of strings as a valid issuer. This permissive check can let an attacker forge a JWT containing an issuer array like [host, https://valid-iss], which may be accepted by verifiers (especial...