CVE-2025-26866

moderate-risk
Published 2025-12-12

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.

Do I need to act?

~
2.4% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.8/10 High
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Apache

References (3)

Issue Tracking https://github.com/apache/incubator-hugegraph/pull/2735
Mailing List https://lists.apache.org/thread/ko8jkwbjbb99m45pg4sgo5xsm8gx9nsq
Mailing List http://www.openwall.com/lists/oss-security/2025/12/09/1
41
/ 100
moderate-risk
Severity 30/34 · Critical
Exploitability 6/34 · Minimal
Exposure 5/34 · Minimal