GHSA-mgvc-8q2h-5pgc
HIGHGHSA-mgvc-8q2h-5pgc is a high-severity (CVSS 8.2) CWE-288 vulnerability in org.springframework.boot:spring-boot-starter-actuator. O3 Security confirms whether GHSA-mgvc-8q2h-5pgc is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
Spring Boot has an Authentication Bypass under Actuator CloudFoundry endpoints
Blast Radius
org.springframework.boot:spring-boot-starter-actuator☕org.springframework.boot:spring-boot-starter-actuator☕org.springframework.boot:spring-boot-starter-actuator☕org.springframework.boot:spring-boot-starter-actuator☕org.springframework.boot:spring-boot-starter-actuatorReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.
Description
Spring Boot applications with Actuator can be vulnerable to an "Authentication Bypass" vulnerability when an application endpoint that requires authentication is declared under the path used by the CloudFoundry Actuator endpoints. This issue affects Spring Security: from 4.0.0 through 4.0.3, from 3.5.0 through 3.5.11, from 3.4.0 through 3.4.14, from 3.3.0 through 3.3.17, from 2.7.0 through 2.7.31.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | org.springframework.boot:spring-boot-starter-actuator | ≥ 4.0.0-M1&&< 4.0.4 | 4.0.4 |
| ☕Maven | org.springframework.boot:spring-boot-starter-actuator | ≥ 3.5.0&&< 3.5.12 | 3.5.12 |
| ☕Maven | org.springframework.boot:spring-boot-starter-actuator | ≥ 3.4.0 | No fix |
| ☕Maven | org.springframework.boot:spring-boot-starter-actuator | ≥ 3.0.0 | No fix |
| ☕Maven | org.springframework.boot:spring-boot-starter-actuator | all versions | No fix |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.springframework.boot:spring-boot-starter-actuator. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Fix
Update org.springframework.boot:spring-boot-starter-actuator to 4.0.4 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-mgvc-8q2h-5pgc is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 pinpoints whether GHSA-mgvc-8q2h-5pgc is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.
Tailored to GHSA-mgvc-8q2h-5pgc. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is GHSA-mgvc-8q2h-5pgc in your dependencies?
O3 detects GHSA-mgvc-8q2h-5pgc across Maven dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.