What is CVE-2026-22748?

CVE-2026-22748 is a medium-severity vulnerability in Spring Security, classified under Improper Input Validation. CVSS score: 5.3/10. Published 2026-04-22.

How severe is CVE-2026-22748?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Improper input validation in Spring Security

CVE-2026-22748

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…

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.002 (10.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N.

Affected products

Spring Security — versions 6.3.0, 6.4.0, 6.5.0
Vmware Spring_security

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

security@vmware.com (Vendor Advisory)

Frequently asked questions

What is CVE-2026-22748?: CVE-2026-22748 is a medium-severity vulnerability in Spring Security, classified under Improper Input Validation. CVSS score: 5.3/10. Published 2026-04-22.
How severe is CVE-2026-22748?: Medium severity. CVSS v3 base score is 5.3 out of 10.