CVE-2025-26866HIGH 8.8EPSS p51.5%

CVE-2025-26866CVE-2025-26866

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.

Scoring

CVSS 3.18.8 (HIGH)
VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS0.79% probability of exploitation · percentile 51.5% · 2026-06-18T12:00:27Z
Published2025-12-12
Last modified2025-12-29

Underlying weaknesses· 1

CWE-502

References

  1. https://github.com/apache/incubator-hugegraph/pull/2735
  2. https://lists.apache.org/thread/ko8jkwbjbb99m45pg4sgo5xsm8gx9nsq
  3. http://www.openwall.com/lists/oss-security/2025/12/09/1

1

TypeTargetConfidenceTier
WeaknessDeserialization of Untrusted Datacwe-5020%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.