{"id":"CVE-2025-26866","title":"A remote code execution vulnerability exists where a malicious Raft node can exploit insecure Hessian deserialization within the PD store","summary":"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 cl…","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-502"],"vendor":"apache","product":"hugegraph","affected":["hugegraph >= 1.0.0, < 1.7.0"],"patched":["hugegraph 1.7.0"],"published":"2025-12-12","updated":"2026-10-07","sourceUpdated":"2026-10-07T20:10:01.970","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-26866","references":[{"url":"https://github.com/apache/incubator-hugegraph/pull/2735","label":"security@apache.org"},{"url":"https://lists.apache.org/thread/ko8jkwbjbb99m45pg4sgo5xsm8gx9nsq","label":"security@apache.org"},{"url":"http://www.openwall.com/lists/oss-security/2025/12/09/1","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd"],"epss":0.00893,"epssPercentile":0.58147,"ingestedAt":"2026-10-07T20:46:46.899Z","slug":"CVE-2025-26866","body":"## Overview\n\nA 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.\n\n\n\n\nUsers are recommended to upgrade to version 1.7.0, which fixes the issue.\n\n## Affected\n\n- `hugegraph >= 1.0.0, < 1.7.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `hugegraph 1.7.0`","depth":"twilight","depthScore":49,"depthScoreParts":{"impact":48.4,"likelihood":0.2,"exploitation":0,"ransomware":0},"changes":[]}