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Vulnerability record · CVE-2025-26866 · published 12 December 2025

CVE-2025-26866: Apache hugegraph deserialization of untrusted data vulnerability

Apache · Hugegraph

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.

8.8 CVSS 3.1 High EPSS 0.89% · top 42.1% CWE-502 · Deserialization of untrusted data
8.8CVSS 3.1 base score
0.89%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References
17 Jun 2026Last modified by NVD

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.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/apache/incubator-hugegraph/pull/2735 Issue TrackingPatch
https://lists.apache.org/thread/ko8jkwbjbb99m45pg4sgo5xsm8gx9nsq Mailing List
http://www.openwall.com/lists/oss-security/2025/12/09/1 Mailing List

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Source: NIST National Vulnerability Database (record CVE-2025-26866), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.