Is CVE-2025-26866 actively exploited?

CVE-2025-26866 has no public evidence of in-the-wild exploitation as of 2025-12-29.

What is the CVSS score for CVE-2025-26866?

CVE-2025-26866 has a CVSS score of 8.8 (HIGH severity). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

How do I patch CVE-2025-26866?

Patch guidance is available from apache security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2025-26866.

Fix CVE-2025-26866 - HIGH apache hugegraph

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 Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector: network
Complexity: low
Privileges: low
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-502 · Insecure Deserialization

Metadata

Primary Vendor: APACHE
Published: 12/12/2025
Last Modified: 12/29/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2025-26866

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary