What is CVE-2026-22731?

CVE-2026-22731 is a high-severity vulnerability in Spring Boot, classified under Authentication Bypass Using an Alternate Path or Channel. CVSS score: 8.2/10. Published 2026-03-19.

How severe is CVE-2026-22731?

High severity. CVSS v3 base score is 8.2 out of 10.

Auth bypass in Spring Boot

CVE-2026-22731

Spring Boot applications with Actuator can be vulnerable to an "Authentication Bypass" vulnerability when an application endpoint that requires authentication is declared under a specific path, already configured for a Health Group additional path. This issue affects Spring Boot: from 4.0 before 4.0.3, from 3.5 before 3.5.11, from 3.4 before 3.4.15. This CVE is similar but not equivalent to CVE-2026-22733, as the conditions for exploit and vulnerable versions are different.

Published 2026-03-19 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N.

EPSS exploit prediction

EPSS: 0.003 (25.8th percentile), scored 2026-10-19.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 26th percentile — 25.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000

Affected products

Spring Boot — versions 4.0, 3.5, 3.4
VMware Spring Boot

Weakness classification (CWE)

References

spring.io/security/cve-2026-22731 (Vendor Advisory)

Frequently asked questions

What is CVE-2026-22731?: CVE-2026-22731 is a high-severity vulnerability in Spring Boot, classified under Authentication Bypass Using an Alternate Path or Channel. CVSS score: 8.2/10. Published 2026-03-19.
How severe is CVE-2026-22731?: High severity. CVSS v3 base score is 8.2 out of 10.