CVE-2025-26866: Apache Hugegraph

High severity, CVSS 8.8. EPSS: 0.9% chance of exploitation in the next 30 days.

A remote code execution vulnerability exists where a malicious Raft node can exploit insecure Hessian deserialization within the PD store. The fix enforces IP-based authentication to restrict cluster membership and implements a strict class whitelist to harden the Hessian serialization process against object injection attacks. Users are recommended to upgrade to version 1.7.0, which fixes the issue.

Affected products

• Apache Hugegraph: from 1.0.0, before 1.7.0 (fixed in 1.7.0)

Published 2025-12-12. Last modified 2026-10-07.