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CVE-2025-26866

8.8 · HIGH

A remote code execution vulnerability exists where a malicious Raft node can exploit insecure Hessian deserialization within the PD store.

Published Dec 12, 2025CWE-502EPSS 0.89%

Overview

CVE-2025-26866 is a high-severity vulnerability. It was published on December 12, 2025 and has a CVSS 3.1 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/apache/incubator-hugegraph/pull/2735Reflists.apache.org/thread/ko8jkwbjbb99m45pg4sgo5xsm8gx9nsqRefwww.openwall.com/lists/oss-security/2025/12/09/1

How CyberStrike helps

Frequently asked questions

What is CVE-2025-26866?

CVE-2025-26866 is a high-severity vulnerability. It was published on December 12, 2025 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2025-26866?

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2025-26866?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2025-26866?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-26866 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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