Spring Boot has an Authentication Bypass under Actuator Health groups paths (CVE-2026-22731) | HOL Guard CVE

High · CVSS 8.2CVE-2026-22731GHSA-8HFC-FQ58-R658

Spring Boot has an Authentication Bypass under Actuator Health groups paths

Answer in brief

CVE-2026-22731 records a High severity (CVSS 8.2) vulnerability in Spring Boot has an Authentication Bypass under Actuator Health groups paths. The current sources do not mark it as known exploited. The current feed maps org.springframework.boot:spring-boot-starter-actuator (maven), org.springframework.boot:spring-boot-starter-actuator (maven), org.springframework.boot:spring-boot-starter-actuator (maven). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Mar 20, 2026Updated Sep 10, 2026Source checked Sep 10, 2026First seen by HOL Aug 7, 2026Material review Sep 10, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 8.2
Exploitation: Not marked as known exploited
Affected software: 3 mapped packages or products
Fix availability: Available

Why this deserves its current priority

CVSS is 8.2. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps org.springframework.boot:spring-boot-starter-actuator (maven), org.springframework.boot:spring-boot-starter-actuator (maven), org.springframework.boot:spring-boot-starter-actuator (maven). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
org.springframework.boot:spring-boot-starter-actuatormaven	>=3.4.0	Not reported
org.springframework.boot:spring-boot-starter-actuatormaven	>=3.5.0 <3.5.12	3.5.12
org.springframework.boot:spring-boot-starter-actuatormaven	>=4.0.0-M1 <4.0.4	4.0.4

Recommended response

Check inventory. Check lockfiles and deployed manifests for org.springframework.boot:spring-boot-starter-actuator, org.springframework.boot:spring-boot-starter-actuator, org.springframework.boot:spring-boot-starter-actuator.
Review the reported fix. Update org.springframework.boot:spring-boot-starter-actuator to 3.5.12; org.springframework.boot:spring-boot-starter-actuator to 4.0.4 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Mar 20, 2026
Evidence: source:osv:source_dates:source-dates:record
Source modified
Sep 10, 2026
Evidence: source:osv:source_dates:source-dates:record
First seen by HOL
Aug 7, 2026

Sources and claim methodology

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.