{"id":"CVE-2022-51018","state":"PUBLISHED","title":"PocketMine-MP before 3.26.5 and 4.0.5 Input Validation via Book Pages","description":"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).","publishedAt":"2026-09-07T12:55:10.538Z","updatedAt":"2026-10-08T15:21:02.576Z","severity":{"score":7.1,"label":"High","version":"4.0","vector":"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","source":"VulnCheck"},"assigner":"VulnCheck","products":["pmmp PocketMine-MP"],"affected":[{"vendor":"pmmp","product":"PocketMine-MP","packageURL":"pkg:composer/pocketmine/pocketmine-mp","defaultStatus":"unaffected","versions":[{"version":"3.0.0","status":"affected","lessThan":"3.26.5","versionType":"semver"},{"version":"3.26.5","status":"unaffected","versionType":"semver"},{"version":"4.0.0","status":"affected","lessThan":"4.0.5","versionType":"semver"},{"version":"4.0.5","status":"unaffected","versionType":"semver"}]}],"references":["https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-p62j-hrxm-xcxf","https://www.vulncheck.com/advisories/pocketmine-mp-before-3.26.5-input-validation-via-book-pages"],"weaknesses":["CWE-400"],"ingestedAt":"2026-10-29T20:05:36.141Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/51xxx/CVE-2022-51018.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-51018","state":"PUBLISHED","datePublished":"2026-09-07T12:55:10.538Z","dateUpdated":"2026-10-08T15:21:02.576Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-09-05T21:04:08.629Z"},"containers":{"cna":{"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)."}],"affected":[{"vendor":"pmmp","product":"PocketMine-MP","packageURL":"pkg:composer/pocketmine/pocketmine-mp","defaultStatus":"unaffected","versions":[{"version":"3.0.0","status":"affected","lessThan":"3.26.5","versionType":"semver"},{"version":"3.26.5","status":"unaffected","versionType":"semver"},{"version":"4.0.0","status":"affected","lessThan":"4.0.5","versionType":"semver"},{"version":"4.0.5","status":"unaffected","versionType":"semver"}]}],"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)"},{"url":"https://www.vulncheck.com/advisories/pocketmine-mp-before-3.26.5-input-validation-via-book-pages","name":"VulnCheck Advisory: PocketMine-MP before 3.26.5 Input Validation via Book Pages","tags":["third-party-advisory"]}],"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-400","lang":"en","description":"Uncontrolled Resource Consumption","type":"CWE"}]}],"providerMetadata":{"shortName":"VulnCheck","orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateUpdated":"2026-10-08T15:21:02.576Z"},"datePublic":"2022-01-04T00:00:00.000Z","x_generator":{"engine":"vulncheck-endgame"}},"adp":[{"title":"CISA ADP Vulnrichment","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"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-14T19:33:06.878Z"}}]}}}