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Vulnerabilities

Vulnerability · CVE-2025-26866

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

Published Dec 12, 2025 · catalog updated Feb 26, 2026 · Apache Software Foundation Apache HugeGraph-Server

Last checked Oct 27, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-26866. EPSS is 1.04%. Act only if a listed version of Apache Software Foundation Apache HugeGraph-Server is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High8.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
1.04%
Remediation
Version ranges on file
Affected products
vendor Apache Software Foundation Apache HugeGraph-Server 1.0.0 <1.7.0

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Apache Software Foundation Apache HugeGraph-Server 1.0.0 <1.7.01.0.0 <1.7.0

How to fix CVE-2025-26866

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-26866. EPSS is 1.04%. Act only if a listed version of Apache Software Foundation Apache HugeGraph-Server is installed.

Which versions are affected?

Compare what you have installed with Apache Software Foundation Apache HugeGraph-Server 1.0.0 <1.7.0 1.0.0 <1.7.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 1.04%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Dec 12, 2025 · EUVD

    Detected

    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 issu

  2. Feb 26, 2026 · EUVD

    Updated

    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 issu

Sources

  • CVE.orgVulnerability recordCVE-2025-26866

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-26866

    30-day exploitation probability 1.04%

    first.org
  • EUVDVulnerability recordEUVD-2025-203068

    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 seriali

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 27, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • CVE.orgOct 27, 2026
  • FIRST EPSSOct 27, 2026
  • EUVDOct 26, 2026