CVE-2026-40972: fallo de gravedad alta en Spring Boot
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
21Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 7.5epss 0.3%
An attacker on the same network as the remote application may be able to utilize a timing attack to discover information about the remote secret. In extreme circumstances this could result in the attacker determining the secret and uploading changed classes, thereby achieving remote code execution in the remote application.
Affected: Spring Boot 4.0.0–4.0.5 (fix 4.0.6), 3.5.0–3.5.13 (fix 3.5.14), 3.4.0–3.4.15 (fix 3.4.16), 3.3.0–3.3.18 (fix 3.3.19), 2.7.0–2.7.32 (fix 2.7.33); DevTools remote secret comparison. Versions that are no longer supported are also affected per vendor advisory.
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Productos afectados
Spring · Spring BootCVEs relacionadas — Spring Boot
En el mismo producto, de las más peligrosas a las menos.
CVE-2023-34055MEDIUMSpring Boot server Web Observations DoS VulnerabilityEPSS 1.2%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%
Referencias
https://spring.io/security/cve-2026-40972