{"id":"CVE-2026-86199","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-86199","summary":"PocketMine-MP versions before 5.43.1 fail to properly validate the Certificate field during offline login authentication. Unauthenticated players can trigger an uninitialized property…","details":"PocketMine-MP versions before 5.43.1 fail to properly validate the Certificate field during offline login authentication. Unauthenticated players can trigger an uninitialized property access error that crashes the server.","published":"2026-09-09T14:17:20.980","modified":"2026-09-09T14:17:20.980","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":{"url":"https://github.com/pmmp/PocketMine-MP/commit/8c75a1d739e8e190d3cc2338b25cebcc9c052b1b","label":"pmmp/PocketMine-MP@8c75a1d"},"references":[{"type":"WEB","url":"https://github.com/pmmp/PocketMine-MP/commit/8c75a1d739e8e190d3cc2338b25cebcc9c052b1b"},{"type":"WEB","url":"https://github.com/pmmp/PocketMine-MP/commit/e4aaef4ee0f769b52dc0347a1d6da403b9691115"},{"type":"WEB","url":"https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-g2fj-p69p-9chp"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/pocketmine-mp-before-5.43.1-denial-of-service-via-unauthenticated-login"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-09-09T14:17:20.980"}}