CVSS VectorNVD
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N
Lifecycle Timeline
1DescriptionNVD
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.
AnalysisAI
JWT token validation bypass in Spring Security allows authenticated attackers to forge or manipulate JWT tokens when NimbusJwtDecoder or NimbusReactiveJwtDecoder is used without explicit OAuth2TokenValidator configuration, enabling unauthorized access to protected resources. The vulnerability affects Spring Security versions 6.3.0-6.3.14, 6.4.0-6.4.14, 6.5.0-6.5.9, and 7.0.0-7.0.4. …
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-24610
GHSA-cvc6-q2cp-2xhw