CVE-2025-26866: hugegraph Insecure Deserialization

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.

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CVSS v3.1 Score

8.8

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-502 Deserialization of Untrusted Data

Affected Products

Vendor	Product	Versions
apache	hugegraph	1.0.0 — 1.7.0

References

Advisories & Patches

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

Other References

https://lists.apache.org/thread/ko8jkwbjbb99m45pg4sgo5xsm8gx9nsq http://www.openwall.com/lists/oss-security/2025/12/09/1

Frequently Asked Questions

What is CVE-2025-26866? +

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. It has a CVSS v3.1 base score of 8.8 (HIGH).

How severe is CVE-2025-26866? +

CVE-2025-26866 has a CVSS v3.1 score of 8.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-26866? +

CVE-2025-26866 affects products from apache, specifically: hugegraph. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-26866? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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