{"items":[{"id":"NVI-00007229","kind":"vulnerability","title":"PocketMine-MP has LogDoS by many junk properties in client data JWT in LoginPacket","revision":3,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-xp4f-g2cm-rhg7","CVE-2026-86200"],"plain_summary":"OSV carries this publisher advisory for pocketmine/pocketmine-mp. This is an aggregated source copy; consult the original publisher and compare update dates.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"The original advisory lists fixed boundaries 5.42.1 for pocketmine/pocketmine-mp. Confirm the publisher’s latest guidance.","source_ids":["sr-d431c895d0f20c9ac76eae2f6f14e45c"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-3450ae89a546b25ee93f98df9be8fcc3"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-10-08T16:17:56.107Z","value":"5.3 MEDIUM (3.1)","meaning":"disclosure@vulncheck.com severity; no combined Null risk score.","source_id":"sr-503cf82a32916962f96e9181048230a1"},{"kind":"CVSS","as_of":"2026-10-08T16:17:56.107Z","value":"6.9 MEDIUM (4.0)","meaning":"disclosure@vulncheck.com severity; no combined Null risk score.","source_id":"sr-503cf82a32916962f96e9181048230a1"},{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.637%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.5056. Missing scores are unknown.","source_id":"sr-3450ae89a546b25ee93f98df9be8fcc3"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-d431c895d0f20c9ac76eae2f6f14e45c","url":"https://github.com/advisories/GHSA-xp4f-g2cm-rhg7","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-xp4f-g2cm-rhg7","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:51.447Z"},{"id":"sr-503cf82a32916962f96e9181048230a1","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-86200","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-86200","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-01T07:25:08.112Z"},{"id":"sr-3450ae89a546b25ee93f98df9be8fcc3","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-86200","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:15.385Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-d431c895d0f20c9ac76eae2f6f14e45c"],"technology":"pocketmine/pocketmine-mp","known_exclusions":[],"conditions_summary":"### Impact\n\nAttackers can fill the body of the clientData JWT in LoginPacket with lots of junk properties, causing the server to flood warning messages, as well as wasting CPU time.\n\nThis happens because the JsonMapper instance used to process the JWT body is configured to warn on unexpected properties instead of rejecting them outright. While this behaviour increases flexibility for random changes introduced by Microsoft, it also creates vulnerabilities if not handled carefully.\n\nThis vulnerability affects PocketMine-MP servers exposed to a public network where unknown actors may have access.\n\n### Patches\n\nThis issue was fixed in c1d4a813fb8c21bfd8b9affd040da864b794df71 by restricting the number of unknown properties to 10, and rejecting the packet if this limit is exceeded. This continues to tolerate random additions to the JWT between versions, while preventing the logger from being abused by clients to slow down the server.\n\n### Workarounds\nPlugins can handle `DataPacketReceiveEvent` to capture `LoginPacket`, and pre-process the clientData JWT to ensure it doesn't have any unusual properties in it. This can be achieved using `JsonMapper` (see the original affected code below) a","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 5.42.1"]}],"null_published_at":"2026-11-02T20:21:07.851Z","source_updated_at":"2026-09-10T03:56:07.032Z","source_disclosed_at":"2026-04-15T19:43:33.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T21:42:51.447Z"},{"id":"NVI-00007229","kind":"vulnerability","title":"PocketMine-MP has LogDoS by many junk properties in client data JWT in LoginPacket","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-xp4f-g2cm-rhg7","CVE-2026-86200"],"plain_summary":"OSV carries this publisher advisory for pocketmine/pocketmine-mp. This is an aggregated source copy; consult the original publisher and compare update dates.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"The original advisory lists fixed boundaries 5.42.1 for pocketmine/pocketmine-mp. Confirm the publisher’s latest guidance.","source_ids":["sr-d431c895d0f20c9ac76eae2f6f14e45c"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-3450ae89a546b25ee93f98df9be8fcc3"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.637%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.5056. Missing scores are unknown.","source_id":"sr-3450ae89a546b25ee93f98df9be8fcc3"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-d431c895d0f20c9ac76eae2f6f14e45c","url":"https://github.com/advisories/GHSA-xp4f-g2cm-rhg7","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-xp4f-g2cm-rhg7","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:51.447Z"},{"id":"sr-3450ae89a546b25ee93f98df9be8fcc3","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-86200","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:15.385Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-d431c895d0f20c9ac76eae2f6f14e45c"],"technology":"pocketmine/pocketmine-mp","known_exclusions":[],"conditions_summary":"### Impact\n\nAttackers can fill the body of the clientData JWT in LoginPacket with lots of junk properties, causing the server to flood warning messages, as well as wasting CPU time.\n\nThis happens because the JsonMapper instance used to process the JWT body is configured to warn on unexpected properties instead of rejecting them outright. While this behaviour increases flexibility for random changes introduced by Microsoft, it also creates vulnerabilities if not handled carefully.\n\nThis vulnerability affects PocketMine-MP servers exposed to a public network where unknown actors may have access.\n\n### Patches\n\nThis issue was fixed in c1d4a813fb8c21bfd8b9affd040da864b794df71 by restricting the number of unknown properties to 10, and rejecting the packet if this limit is exceeded. This continues to tolerate random additions to the JWT between versions, while preventing the logger from being abused by clients to slow down the server.\n\n### Workarounds\nPlugins can handle `DataPacketReceiveEvent` to capture `LoginPacket`, and pre-process the clientData JWT to ensure it doesn't have any unusual properties in it. This can be achieved using `JsonMapper` (see the original affected code below) a","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 5.42.1"]}],"null_published_at":"2026-10-31T22:27:15.287Z","source_updated_at":"2026-09-10T03:56:07.032Z","source_disclosed_at":"2026-04-15T19:43:33.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-10-31T21:42:51.447Z"},{"id":"NVI-00007229","kind":"vulnerability","title":"PocketMine-MP has LogDoS by many junk properties in client data JWT in LoginPacket","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-xp4f-g2cm-rhg7","CVE-2026-86200"],"plain_summary":"OSV carries this publisher advisory for pocketmine/pocketmine-mp. This is an aggregated source copy; consult the original publisher and compare update dates.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"The original advisory lists fixed boundaries 5.42.1 for pocketmine/pocketmine-mp. Confirm the publisher’s latest guidance.","source_ids":["sr-d431c895d0f20c9ac76eae2f6f14e45c"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-d431c895d0f20c9ac76eae2f6f14e45c","url":"https://github.com/advisories/GHSA-xp4f-g2cm-rhg7","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-xp4f-g2cm-rhg7","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:51.447Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-d431c895d0f20c9ac76eae2f6f14e45c"],"technology":"pocketmine/pocketmine-mp","known_exclusions":[],"conditions_summary":"### Impact\n\nAttackers can fill the body of the clientData JWT in LoginPacket with lots of junk properties, causing the server to flood warning messages, as well as wasting CPU time.\n\nThis happens because the JsonMapper instance used to process the JWT body is configured to warn on unexpected properties instead of rejecting them outright. While this behaviour increases flexibility for random changes introduced by Microsoft, it also creates vulnerabilities if not handled carefully.\n\nThis vulnerability affects PocketMine-MP servers exposed to a public network where unknown actors may have access.\n\n### Patches\n\nThis issue was fixed in c1d4a813fb8c21bfd8b9affd040da864b794df71 by restricting the number of unknown properties to 10, and rejecting the packet if this limit is exceeded. This continues to tolerate random additions to the JWT between versions, while preventing the logger from being abused by clients to slow down the server.\n\n### Workarounds\nPlugins can handle `DataPacketReceiveEvent` to capture `LoginPacket`, and pre-process the clientData JWT to ensure it doesn't have any unusual properties in it. This can be achieved using `JsonMapper` (see the original affected code below) a","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 5.42.1"]}],"null_published_at":"2026-10-31T22:13:14.317Z","source_updated_at":"2026-09-10T03:56:07.032Z","source_disclosed_at":"2026-04-15T19:43:33.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-10-31T21:42:51.447Z"}],"next_cursor":null,"snapshot_revision":"40769"}