CVE-2026-41862

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-06-23 · updated 2026-10-25
Weakness: CWE-502

Description

Spring Statemachine's Kryo-based persistence backends (JPA, MongoDB, Redis and ZooKeeper) deserialise persisted state-machine contexts without enforcing a class allowlist (CWE-502, deserialisation of untrusted data), which can lead to remote code execution inside the application JVM. Affected versions: Spring Statemachine 4.0.0 through 4.0.1 Spring Statemachine 3.2.0 through 3.2.4

Affected products

Spring Statemachine: from 3.2.0 before 3.2.5; from 4.0.0 before 4.0.2 — fixed in 3.2.5, 4.0.2

How to fix

Upgrade to a fixed version: Spring Statemachine 3.2.5, 4.0.2. Check the vendor advisory for mitigations.

References

https://spring.io/security/cve-2026-41862

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