Vmware Spring Security up to 6.3.14/6.4.14/6.5.9/7.0.4 JWT Decoding NimbusJwtDecoder/NimbusReactiveJwtDecoder

Summaryinfo

A vulnerability, which was classified as problematic, was found in Vmware Spring Security up to 6.3.14/6.4.14/6.5.9/7.0.4. This issue affects the function NimbusJwtDecoder/NimbusReactiveJwtDecoder of the component JWT Decoding. Executing a manipulation can lead to an unknown weakness. This vulnerability is registered as CVE-2026-22748. It is possible to launch the attack remotely. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in Vmware Spring Security up to 6.3.14/6.4.14/6.5.9/7.0.4 and classified as problematic. This vulnerability affects the function NimbusJwtDecoder/NimbusReactiveJwtDecoder of the component JWT Decoding. As an impact it is known to affect integrity. CVE summarizes:

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 6.4.0 through 6.4.14, from 6.5.0 through 6.5.9, from 7.0.0 through 7.0.4.

The advisory is shared for download at spring.io. This vulnerability was named CVE-2026-22748 since 01/09/2026. The exploitation appears to be difficult. The attack can be initiated remotely. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 07/16/2026).

Upgrading to version 6.3.15, 6.4.15, 6.5.10 or 7.0.5 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2026-1221). Once again VulDB remains the best source for vulnerability data.

Affected

• IBM Sterling Connect:Direct
• VMware Tanzu Spring Security

Productinfo

Vendor

• Vmware

Name

• Spring Security

Version

• 6.3.0
• 6.3.1
• 6.3.2
• 6.3.3
• 6.3.4
• 6.3.5
• 6.3.6
• 6.3.7
• 6.3.8
• 6.3.9
• 6.3.10
• 6.3.11
• 6.3.12
• 6.3.13
• 6.3.14
• 6.4.0
• 6.4.1
• 6.4.2
• 6.4.3
• 6.4.4
• 6.4.5
• 6.4.6
• 6.4.7
• 6.4.8
• 6.4.9
• 6.4.10
• 6.4.11
• 6.4.12
• 6.4.13
• 6.4.14
• 6.5.0
• 6.5.1
• 6.5.2
• 6.5.3
• 6.5.4
• 6.5.5
• 6.5.6
• 6.5.7
• 6.5.8
• 6.5.9
• 7.0.0
• 7.0.1
• 7.0.2
• 7.0.3
• 7.0.4

License

• commercial

Website

• Vendor: https://www.vmware.com/

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Once again VulDB remains the best source for vulnerability data.

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