{"id":"CVE-2022-51018","summary":"PocketMine-MP before 3.26.5 and 4.0.5 Input Validation via Book Pages","details":"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).","aliases":["GHSA-p62j-hrxm-xcxf"],"modified":"2026-09-10T03:30:46.495440861Z","published":"2026-09-07T12:55:10.538Z","database_specific":{"cwe_ids":["CWE-400"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/51xxx/CVE-2022-51018.json","cna_assigner":"VulnCheck"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/51xxx/CVE-2022-51018.json"},{"type":"ADVISORY","url":"https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-p62j-hrxm-xcxf"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-51018"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/pocketmine-mp-before-3.26.5-input-validation-via-book-pages"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/pmmp/pocketmine-mp","events":[{"introduced":"03510333dcec34fa5a59191e8e9610a9da5765ef"},{"fixed":"a4af1609eaf42eff5effe04b08f2c1402d408f3d"},{"introduced":"468faa464b2bc5c97f23fafbb71ea61035f6f218"},{"fixed":"e7d17eb4d327f6573ae702273e3838305844d2d6"}],"database_specific":{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"3.0.0"},{"fixed":"3.26.5"},{"introduced":"4.0.0"},{"fixed":"4.0.5"}]}}],"versions":["4.0.4","4.0.3","3.26.4","4.0.2","3.26.3","4.0.1","3.26.2","4.0.0","3.26.1","3.26.0","3.25.6","3.25.5","3.25.4","3.25.3","3.25.2","3.25.1","3.25.0","3.24.0","3.23.1","3.23.0","3.22.5","3.22.4","3.22.3","3.22.2","3.22.1","3.22.0","3.21.1","3.21.0","3.20.0","3.19.3","3.19.2","3.19.1","3.18.2","3.19.0","3.18.1","3.17.7","3.18.0","3.17.6","3.17.5","3.17.4","3.17.3","3.17.2","3.17.1","3.17.0","3.16.1","3.16.0","3.15.4","3.15.3","3.15.2","3.15.1","3.15.0","3.14.3","3.14.2","3.14.1","3.14.0","3.13.1","3.13.0","3.12.6","3.12.5","3.12.4","3.12.3","3.12.2","3.12.1","3.11.7","3.12.0","3.11.6","3.11.5","3.11.4","3.11.3","3.11.2","3.11.1","3.10.1","3.11.0","3.9.8","3.10.0","3.9.7","3.9.6","3.9.5","3.9.4","3.9.3","3.9.2","3.9.1","3.9.0","3.8.7","3.8.6","3.8.5","3.8.4","3.8.3","3.8.2","3.8.1","3.8.0","3.7.3","3.7.2","3.7.1","3.7.0","3.6.5","3.6.4","3.6.3","3.6.2","3.6.1","3.6.0","3.5.10","3.5.9","3.5.8","3.5.7","3.5.6","3.5.5","3.5.4","3.5.3","3.5.2","3.5.1","3.5.0","3.4.1","3.4.0","3.2.0","3.0.2","3.0.1","3.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-51018.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"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"}]}