Deserialization in Spring Statemachine

CVE-2026-41862

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 remo…

Vulnerability class: Insecure Deserialization

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-41862?
CVE-2026-41862 is a high-severity vulnerability in Spring Statemachine, classified under Deserialization of Untrusted Data. CVSS score: 8.8/10. Published 2026-06-23.
How severe is CVE-2026-41862?
High severity. CVSS v3 base score is 8.8 out of 10.