CVE-2026-22748 Potential Security Misconfiguration when Using withIssuerLocation

Medium 5.3 Published Updated

Developers using Spring Security JWT decoding may inadvertently omit token validation, leading to potential security bypasses if not explicitly configured.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2026-22748?

CVE-2026-22748 is a medium-severity vulnerability in Spring Security, published on 22 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official 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.

Weakness: CWE-20

Which versions are affected by CVE-2026-22748?

8 open source packages ship an affected version, including org.springframework.security:spring-security-oauth2-jose. It affects 1 product.

PackageAffectedFixed in
org.springframework.security:spring-security-oauth2-jose MavenFrom 6.3.0 to 6.3.14None
org.springframework.security:spring-security-oauth2-jose MavenFrom 6.3.0 to 6.3.14None
org.springframework.security:spring-security-oauth2-jose MavenFrom 6.4.0 to 6.4.14None
org.springframework.security:spring-security-oauth2-jose MavenFrom 6.4.0 to 6.4.14None
org.springframework.security:spring-security-oauth2-jose MavenFrom 6.5.06.5.10
org.springframework.security:spring-security-oauth2-jose MavenFrom 6.5.06.5.10
2 more packages
org.springframework.security:spring-security-oauth2-jose MavenFrom 7.0.07.0.5
org.springframework.security:spring-security-oauth2-jose MavenFrom 7.0.07.0.5

Products include Vmware Spring Security.

How do I fix CVE-2026-22748?

Upgrade org.springframework.security:spring-security-oauth2-jose to a fixed version for your release line: 6.5.10 or 7.0.5.

Is CVE-2026-22748 being exploited?

There is no known exploitation of CVE-2026-22748 in the wild and no public exploit code.

Sources

Also known as CLEANSTART-2026-FR51189, CLEANSTART-2026-KA19928, CLEANSTART-2026-OF60690, CLEANSTART-2026-VT93127, CLSA-2026-1786563390, ECHO-d5bb-3a59-47f3 and 5 more.

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