CVE-2026-59284: Spring Cloud Commons no allow list for writable env actuator endpoint

Severity: high (CVSS 7.6 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-27 · updated 2026-09-01
Weakness: CWE-915

Description

There is no allow list for property keys when Spring Cloud Commons writable /actuator/env is enabled. Spring Cloud Commons 5.0.0 - 5.0.2 Spring Cloud Commons 4.3.0 - 4.3.3 Spring Cloud Commons 4.0.0 - 4.2.6 Spring Cloud Commons 3.1.10 and earlier

Affected products

Spring Cloud Commons: before 3.1.11; from 4.0.0 before 4.2.7; from 4.3.0 before 4.3.4; from 5.0.0 before 5.0.3 — fixed in 3.1.11, 4.2.7, 4.3.4, 5.0.3

How to fix

Upgrade to a fixed version: Spring Cloud Commons 3.1.11, 4.2.7, 4.3.4, 5.0.3. Check the vendor advisory for mitigations.

References

https://spring.io/security/cve-2026-59284

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