CVE-2026-47882: Spring Boot DevTools remote secret generated with a non-cryptographic PRNG

Severity: high (CVSS 8.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-07-30 · updated 2026-10-23
Weakness: CWE-338

Description

When enabling Spring Boot DevTools support for a remote application target (for example a Docker container or Cloud Foundry app) from the Spring Tools Boot Dashboard, Spring Tools generates a shared secret that authenticates DevTools remote-restart uploads to the deployed application. This secret was generated using a non-cryptographic pseudo-random number generator rather than a cryptographically secure source of randomness. Affected Spring Products and Versions: Spring Tools for Eclipse: 5.2.0 and earlier

Affected products

Spring Tools for Eclipse: before 5.3.0 — fixed in 5.3.0

How to fix

Upgrade to a fixed version: Spring Tools for Eclipse 5.3.0. Check the vendor advisory for mitigations.

References

https://spring.io/security/cve-2026-47882

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