{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-51018","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2026-09-05T21:04:08.629Z","datePublished":"2026-09-07T12:55:10.538Z","dateUpdated":"2026-10-08T15:21:02.576Z"},"containers":{"cna":{"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-10-08T15:21:02.576Z"},"datePublic":"2022-01-04T00:00:00.000Z","title":"PocketMine-MP before 3.26.5 and 4.0.5 Input Validation via Book Pages","descriptions":[{"lang":"en","value":"PocketMine-MP before 3.26.5 and 4.0.x before 4.0.5 does not limit book page text length, page count, or author/title length. A player who obtains a writable book can create oversized NBT ('book bombs'), causing excess bandwidth consumption and server crashes (exceeding the 1 MB chunk size limit when saving region-based worlds in PM3, or exceeding the 32 KiB TAG_String limit in PM4)."}],"problemTypes":[{"descriptions":[{"lang":"en","description":"Uncontrolled Resource Consumption","cweId":"CWE-400","type":"CWE"}]}],"affected":[{"vendor":"pmmp","product":"PocketMine-MP","defaultStatus":"unaffected","versions":[{"version":"3.0.0","status":"affected","versionType":"semver","lessThan":"3.26.5"},{"version":"3.26.5","status":"unaffected","versionType":"semver"},{"version":"4.0.0","status":"affected","versionType":"semver","lessThan":"4.0.5"},{"version":"4.0.5","status":"unaffected","versionType":"semver"}],"packageURL":"pkg:composer/pocketmine/pocketmine-mp"}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":7.1,"baseSeverity":"HIGH"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","baseScore":6.5,"baseSeverity":"MEDIUM"}}],"references":[{"url":"https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-p62j-hrxm-xcxf","tags":["vendor-advisory"],"name":"GitHub Security Advisory (GHSA-p62j-hrxm-xcxf)"},{"name":"VulnCheck Advisory: PocketMine-MP before 3.26.5 Input Validation via Book Pages","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/pocketmine-mp-before-3.26.5-input-validation-via-book-pages"}],"x_generator":{"engine":"vulncheck-endgame"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2022-51018","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-09-14T19:22:08.213076Z"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-09-14T19:33:06.878Z"}}]}}