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CVE-2025-26866 — Vulnerability in org.apache.hugegraph:hg-pd-core...

HIGH

Apache HugeGraph-Server: RAFT and deserialization vulnerability

Published December 12, 2025Updated December 12, 2025Source: osv

Summary

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.

Advisory Timeline

  • First published December 12, 2025 (304 days ago).
  • Last revised December 12, 2025 — 0 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

Maven
Update org.apache.hugegraph:hg-pd-core to 1.7.0 or later
<!-- Update pom.xml dependency version to 1.7.0 for org.apache.hugegraph:hg-pd-core -->

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (1)

Affects 1 ecosystem: maven (1).

PackageEcosystemAffectedFixed In
org.apache.hugegraph:hg-pd-core
maven
1.5.01.7.0

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

  • CWE-502
    Deserialization of Untrusted DataMITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.8 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
—
Confidentiality
—
Integrity
—
Availability
—

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U

References

Frequently Asked Questions

What is CVE-2025-26866?
Apache HugeGraph-Server: RAFT and deserialization vulnerability This vulnerability has been assigned a severity rating of HIGH (CVSS score: 9.8/10).
How do I check if my project is affected by CVE-2025-26866?
CVE-2025-26866 affects org.apache.hugegraph:hg-pd-core. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2025-26866 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
9.8

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

GHSA-q37j-3367-fwv7

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