CVE-2026-22748: Potential Security Misconfiguration when Using withIssuerLocation

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-04-22 · updated 2026-10-26
Weakness: CWE-20

Description

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.

Affected products

Spring Security: before 6.3.15; from 6.4.0 before 6.4.15; from 6.5.0 before 6.5.10; from 7.0.0 before 7.0.5 — fixed in 6.3.15, 6.4.15, 6.5.10, 7.0.5
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

How to fix

Upgrade to a fixed version: Spring Security 6.3.15, 6.4.15, 6.5.10, 7.0.5. Check the vendor advisory for mitigations.

References

https://spring.io/security/cve-2026-22748

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