{"id":"CVE-2026-86199","state":"PUBLISHED","title":"PocketMine-MP before 5.43.1 Denial of Service via unauthenticated login","description":"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.","publishedAt":"2026-09-09T13:32:01.117Z","updatedAt":"2026-09-09T14:17:19.917Z","severity":{"score":8.7,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","source":"VulnCheck"},"assigner":"VulnCheck","products":["pmmp PocketMine-MP"],"affected":[{"vendor":"pmmp","product":"PocketMine-MP","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"5.43.1","versionType":"semver"},{"version":"5.43.1","status":"unaffected","versionType":"semver"}]}],"references":["https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-g2fj-p69p-9chp","https://github.com/pmmp/PocketMine-MP/commit/e4aaef4ee0f769b52dc0347a1d6da403b9691115","https://github.com/pmmp/PocketMine-MP/commit/8c75a1d739e8e190d3cc2338b25cebcc9c052b1b","https://www.vulncheck.com/advisories/pocketmine-mp-before-5.43.1-denial-of-service-via-unauthenticated-login"],"weaknesses":["CWE-184"],"ingestedAt":"2026-10-29T20:13:26.108Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/86xxx/CVE-2026-86199.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-86199","state":"PUBLISHED","datePublished":"2026-09-09T13:32:01.117Z","dateUpdated":"2026-09-09T14:17:19.917Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-09-05T11:52:36.821Z"},"containers":{"cna":{"title":"PocketMine-MP before 5.43.1 Denial of Service via unauthenticated login","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"pmmp","product":"PocketMine-MP","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"5.43.1","versionType":"semver"},{"version":"5.43.1","status":"unaffected","versionType":"semver"}]}],"references":[{"url":"https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-g2fj-p69p-9chp","tags":["vendor-advisory"],"name":"GitHub Security Advisory (GHSA-g2fj-p69p-9chp)"},{"url":"https://github.com/pmmp/PocketMine-MP/commit/e4aaef4ee0f769b52dc0347a1d6da403b9691115","tags":["patch"],"name":"Patch Commit"},{"url":"https://github.com/pmmp/PocketMine-MP/commit/8c75a1d739e8e190d3cc2338b25cebcc9c052b1b","tags":["patch"],"name":"Patch Commit"},{"url":"https://www.vulncheck.com/advisories/pocketmine-mp-before-5.43.1-denial-of-service-via-unauthenticated-login","name":"VulnCheck Advisory: PocketMine-MP before 5.43.1 Denial of Service via unauthenticated login","tags":["third-party-advisory"]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":8.7,"baseSeverity":"HIGH"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-184","lang":"en","description":"Incomplete List of Disallowed Inputs","type":"CWE"}]}],"providerMetadata":{"shortName":"VulnCheck","orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateUpdated":"2026-09-09T13:32:01.117Z"},"datePublic":"2026-05-24T00:00:00.000Z","credits":[{"lang":"en","value":"kostamax27","type":"reporter"},{"lang":"en","value":"dktapps","type":"finder"}],"x_generator":{"engine":"vulncheck-endgame"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-g2fj-p69p-9chp","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-09T14:16:06.102661Z","id":"CVE-2026-86199","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-09T14:17:19.917Z"}}]}}}