{"cve":"CVE-2025-26866","nvd":{"published":"2025-12-12T10:15:49.053","modified":"2026-10-07T20:10:01.970","status":"Analyzed","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.\n\n\n\n\nUsers are recommended to upgrade to version 1.7.0, which fixes the issue.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":8.8},"cwes":["CWE-502"],"references":["https://github.com/apache/incubator-hugegraph/pull/2735","https://lists.apache.org/thread/ko8jkwbjbb99m45pg4sgo5xsm8gx9nsq","http://www.openwall.com/lists/oss-security/2025/12/09/1"],"products":["apache:hugegraph"],"source":"nvd","synced_at":"2026-10-19T22:16:40.427100871+00:00"},"epss":{"cve":"CVE-2025-26866","score":0.01044,"percentile":0.63902,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-q37j-3367-fwv7","url":"https://osv.dev/vulnerability/GHSA-q37j-3367-fwv7","summary":"Apache HugeGraph-Server: RAFT and deserialization vulnerability","modified":"2025-12-12T17:11:15.090338Z","packages":[{"ecosystem":"Maven","name":"org.apache.hugegraph:hg-pd-core","purl":"pkg:maven/org.apache.hugegraph/hg-pd-core","ranges":["<1.7.0"],"fixed":["1.7.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}