{"id":"CVE-2021-48006","details":"PocketMine-MP before 4.0.3 does not perform case-insensitive matching when removing operator entries from ops.txt. The removeOp function lowercases the supplied name but only removes an exactly matching entry, so an operator name stored with non-lowercase letters cannot be revoked using the deop command, leaving the player as an operator until the entry is removed from ops.txt manually.","aliases":["GHSA-j5qg-w9jg-3wg3"],"modified":"2026-09-08T08:06:33.621904Z","published":"2026-09-06T12:17:14.637Z","references":[{"type":"ADVISORY","url":"https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-j5qg-w9jg-3wg3"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/pocketmine-mp-before-4.0.3-operator-privilege-escalation-via-case-sensitivity"},{"type":"FIX","url":"https://github.com/pmmp/PocketMine-MP/commit/4d37b79ff7f9d9452e988387f97919a9a1c4954e"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/pmmp/pocketmine-mp","events":[{"introduced":"0"},{"fixed":"795ebd182461f96beeb47b067f7fe33e76bc9059"},{"fixed":"4d37b79ff7f9d9452e988387f97919a9a1c4954e"}],"database_specific":{"source":["DESCRIPTION","REFERENCES"],"extracted_events":[{"introduced":"0"},{"fixed":"4.0.3"}]}}],"versions":["4.0.2","4.0.1","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","api/3.0.0-ALPHA12","1.7dev-937","api/3.0.0-ALPHA11","1.7dev-677","api/3.0.0-ALPHA10","1.7dev-501","api/3.0.0-ALPHA8","1.7dev-83","api/3.0.0-ALPHA6","1.6.2dev-229","api/3.0.0-ALPHA4","api/3.0.0-ALPHA3","api/3.0.0-ALPHA2","api/3.0.0-ALPHA1","api/2.1.0","1.6.1dev-87","api/2.0.0","1.6dev","api/1.11.0","1.4.1","1.4.1dev-936","1.4-916","1.4","Alpha_1.4dev-900","Alpha_1.4dev-855","Alpha_1.4dev-847","Alpha_1.4dev-842","Alpha_1.4dev-834","Alpha_1.4dev-707","Alpha_1.4dev-665","Alpha_1.4dev-659","Alpha_1.4dev-599","Alpha_1.4dev-576","Alpha_1.4dev-491","Alpha_1.4dev-478","Alpha_1.4dev-449","Alpha_1.4dev-413","Alpha_1.4dev-277","Alpha_1.4dev-228","Alpha_1.3.10","Alpha_1.3.9","Alpha_1.3.8","Alpha_1.3.7","Alpha_1.3.5","Alpha_1.3.4","Alpha_1.3.3","Alpha_1.3.2","Alpha_1.3.1","Alpha_1.3","Alpha_1.2.1","Alpha_1.2","Alpha_1.1.1","Alpha_1.1","Alpha_1.0.8","Alpha_1.0.7","Alpha_1.0.6","Alpha_1.0.5","Alpha_1.0.4","Alpha_1.0.3","Alpha_1.0.2","Alpha_1.0.1","Alpha_1.0","pocketmine-mp-rebrand"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-48006.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"}]}