CVE-2025-26866

High

Description

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.

SeverityHigh

CVSS8.8

Exploit probability—

Product

Apache Hugegraph

PublishedDec 12, 2025

First seenDec 12, 2025

Weakness typeCWE-502Deserialization of untrusted data

How to fix

Update

apache hugegraph1.7.0 or later
org.apache.hugegraph:hg-pd-core1.7.0 or later

Patches

github.com/apache/incubator-hugegraph/pull/2735

Vendor advisories

lists.apache.org/thread/ko8jkwbjbb99m45pg4sgo5xsm8gx9nsq

Affected products

Product	Affected versions	Fixed in
apache hugegraph	1.0.0 ≤ v < 1.7.0	1.7.0
org.apache.hugegraph:hg-pd-coreMaven	v < 1.7.0	1.7.0

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