Spring Security 6/7 JWT Decoder Missing Token Validator (CVE-2026-22748)
CVE-2026-22748 Published on April 22, 2026
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<Jwt> separately, for example by calling setJwtValidator.This issue affects Spring Security: from 6.3.0 through 6.3.14, from 6.4.0 through 6.4.14, from 6.5.0 through 6.5.9, from 7.0.0 through 7.0.4.
Vulnerability Analysis
CVE-2026-22748 is exploitable with network access, and requires small amount of user privileges. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality, a high impact on integrity, and no impact on availability.
Weakness Type
Improper Input Validation
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
Products Associated with CVE-2026-22748
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Affected Versions
Spring Security:- Version 6.3.0, <= 6.3.14 is affected.
- Version 6.4.0, <= 6.4.14 is affected.
- Version 6.5.0, <= 6.5.9 is affected.
- Version 7.0.0, <= 7.0.4 is affected.