CVE-2023-34055: medium-severity vulnerability in Spring Boot
Spring Boot server Web Observations DoS Vulnerability
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.3epss 1.2%
In Spring Boot versions 2.7.0 - 2.7.17, 3.0.0-3.0.12 and 3.1.0-3.1.5, it is possible for a user to provide specially crafted HTTP requests that may cause a denial-of-service (DoS) condition.
Specifically, an application is vulnerable when all of the following are true:
* the application uses Spring MVC or Spring WebFlux
* org.springframework.boot:spring-boot-actuator is on the classpath
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Affected products
Spring · Spring BootRelated CVEs — Spring Boot
In the same product, most dangerous first.
CVE-2019-3797LOWAdditional information exposure with Spring Data JPA derived queriesEPSS 1.1%CVE-2026-40976CRITICALCVE-2026-40976EPSS 0.5%CVE-2025-22235HIGHSpring Boot EndpointRequest.to() creates wrong matcher if actuator endpoint is not exposedEPSS 0.4%CVE-2026-22731HIGHAuthentication Bypass under Actuator Health groups pathsEPSS 0.3%CVE-2026-40975MEDIUMCVE-2026-40975EPSS 0.3%CVE-2026-40972HIGHCVE-2026-40972EPSS 0.3%