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CVE-2025-26866

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Date: December 12, 2025

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.

Severity Score

Related Resources (6)

https://nvd.nist.gov/vuln/detail/CVE-2025-26866
https://lists.apache.org/thread/ko8jkwbjbb99m45pg4sgo5xsm8gx9nsq
https://github.com/apache/incubator-hugegraph
http://www.openwall.com/lists/oss-security/2025/12/09/1
https://github.com/apache/incubator-hugegraph/pull/2735
https://www.mend.io/vulnerability-database/CVE-2025-26866

Severity Score

Weakness Type (CWE)

Deserialization of Untrusted Data

CWE-502

Top Fix

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Upgrade Version

Upgrade to version org.apache.hugegraph:hg-pd-core:1.7.0;https://github.com/apache/incubator-hugegraph.git - 1.7.0

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): LOW
Integrity (I): LOW
Availability (A): LOW

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