Improper Authentication

org.springframework.security:spring-security-oauth2-jose is vulnerable to Improper Authentication. The vulnerability is due to missing configuration of a JWT validator when using NimbusJwtDecoder or NimbusReactiveJwtDecoder, which allows an attacker to bypass token validation with crafted JWTs...

CVE-2026-22748

A flaw was found in Spring Security. When an application is configured to decode JSON Web Tokens JWTs using NimbusJwtDecoder or NimbusReactiveJwtDecoder, it may not properly validate these tokens if an OAuth2TokenValidator is not explicitly configured. This oversight could allow an attacker with...

Spring Security has Potential Security Misconfiguration when Using withIssuerLocation

Vulnerability in Spring Spring Security. When an application configures JWT decoding with NimbusJwtDecoder or NimbusReactiveJwtDecoder, it must configure an OAuth2TokenValidator separately, for example by calling setJwtValidator. This issue affects Spring Security: from 6.3.0 through 6.3.14, from...

CVE-2026-22748

Vulnerability in Spring Spring Security. When an application configures JWT decoding with NimbusJwtDecoder or NimbusReactiveJwtDecoder, it must configure an OAuth2TokenValidator separately, for example by calling setJwtValidator.This issue affects Spring Security: from 6.3.0 through 6.3.14, from...

CVE-2026-22748 Potential Security Misconfiguration when Using withIssuerLocation

Vulnerability in Spring Spring Security. When an application configures JWT decoding with NimbusJwtDecoder or NimbusReactiveJwtDecoder, it must configure an OAuth2TokenValidator separately, for example by calling setJwtValidator.This issue affects Spring Security: from 6.3.0 through 6.3.14, from...

CVE-2026-22748 Potential Security Misconfiguration when Using withIssuerLocation

Vulnerability in Spring Spring Security. When an application configures JWT decoding with NimbusJwtDecoder or NimbusReactiveJwtDecoder, it must configure an OAuth2TokenValidator separately, for example by calling setJwtValidator.This issue affects Spring Security: from 6.3.0 through 6.3.14, from...

CVE-2026-22748 Potential Security Misconfiguration when Using withIssuerLocation

Vulnerability in Spring Spring Security. When an application configures JWT decoding with NimbusJwtDecoder or NimbusReactiveJwtDecoder, it must configure an OAuth2TokenValidator separately, for example by calling setJwtValidator.This issue affects Spring Security: from 6.3.0 through 6.3.14, from...

CVE-2026-22748

CVE-2026-22748 affects Spring Security when JWT decoding uses NimbusJwtDecoder or NimbusReactiveJwtDecoder and an OAuth2TokenValidator is not configured separately (e.g., via setJwtValidator). Impact is that the issue can affect authentication integrity (I) with MEDIUM overall severity (CVSS v3.1...

PT-2026-34252

Name of the Vulnerable Software and Affected Versions Spring Spring Security versions 6.3.0 through 6.3.14 Spring Spring Security versions 6.4.0 through 6.4.14 Spring Spring Security versions 6.5.0 through 6.5.9 Spring Spring Security versions 7.0.0 through 7.0.4 Description An issue exists when ...

Potential Security Misconfiguration when Using withIssuerLocation

When an application configures JWT decoding with NimbusJwtDecoder or NimbusReactiveJwtDecoder , it must configure an OAuth2TokenValidator separately, for example by calling setJwtValidator . This is easy to miss when using NimbusJwtDecoderwithIssuerLocation or...