CVE-2026-22733 Authentication Bypass under Actuator CloudFoundry endpoints
Attackers can bypass authentication on Spring Boot Actuator CloudFoundry endpoints if application endpoints are declared under that path.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-22733?
CVE-2026-22733 is a high-severity authentication bypass vulnerability in Spring Security, published on 19 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-288
Which versions are affected by CVE-2026-22733?
10 open source packages ship an affected version, including org.springframework.boot:spring-boot-starter-actuator. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
org.springframework.boot:spring-boot-starter-actuator Maven | All versions to 2.7.18 | None |
org.springframework.boot:spring-boot-starter-actuator Maven | All versions to 2.7.18 | None |
org.springframework.boot:spring-boot-starter-actuator Maven | From 3.0.0 to 3.3.13 | None |
org.springframework.boot:spring-boot-starter-actuator Maven | From 3.0.0 to 3.3.13 | None |
org.springframework.boot:spring-boot-starter-actuator Maven | From 3.4.0 to 3.4.13 | None |
org.springframework.boot:spring-boot-starter-actuator Maven | From 3.4.0 to 3.4.13 | None |
4 more packages
org.springframework.boot:spring-boot-starter-actuator Maven | From 3.5.0 | 3.5.12 |
org.springframework.boot:spring-boot-starter-actuator Maven | From 3.5.0 | 3.5.12 |
org.springframework.boot:spring-boot-starter-actuator Maven | From 4.0.0-M1 | 4.0.4 |
org.springframework.boot:spring-boot-starter-actuator Maven | From 4.0.0-M1 | 4.0.4 |
Products include Vmware Spring Boot.
How do I fix CVE-2026-22733?
Upgrade org.springframework.boot:spring-boot-starter-actuator to a fixed version for your release line: 3.5.12 or 4.0.4.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-22733 being exploited?
There is no known exploitation of CVE-2026-22733 in the wild and no public exploit code.
Other vulnerabilities in Spring Security
- CVE-2023-20873 Spring Boot Security Bypass with Wildcard Pattern Matching on Cloud Foundry
- CVE-2026-40976 Spring Boot's default security filter chain has no authorization rule with Actuator but without Health
- CVE-2026-22731 Authentication Bypass under Actuator Health groups paths
- CVE-2022-27772 Temporary Directory Hijacking to Local Privilege Escalation Vulnerability in org.springframework.boot:spring-boot
- CVE-2026-40972 Spring Boot DevTools remote secret comparison is vulnerable to timing attacks
Sources
Also known as CLSA-2026-1777509607, CLSA-2026-1781052753, CLSA-2026-1781225628, CLSA-2026-1782435544, ECHO-08e0-f675-ffb7, GHSA-mgvc-8q2h-5pgc and 3 more.