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Advisory record · GHSA-j5qg-w9jg-3wg3

Inability to de-op players if listed in ops.txt with non-lowercase letters

CVSS 4.8 MediumEPSS 0.0015 · 4th percentile

Published by the GitHub Advisory Database at 16 Dec 2021, 18:53 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
pocketmine/pocketmine-mpPackagist<4.0.34.0.3
Identifiers
GHSA-j5qg-w9jg-3wg3 · CVE-2021-48006 · PKSA-j497-g66n-z3zj
Weakness (CWE)
CWE-178
Tags
Published
16 Dec 2021
Updated
8 Sept 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Affected: pocketmine/pocketmine-mp versions before 4.0.3, where operator entries in ops.txt that contain uppercase letters cannot be removed with the deop command, because the removal lowercases the name but the stored entry keeps its capitals. An attacker would need to be able to edit ops.txt on the server, and the advisory says a player can make their own operator status impossible to remove this way. Upgrade to 4.0.3; until then, the advisory's workaround is to remove the affected lines from ops.txt manually.

Written 31 Oct 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
4.8 Medium 4.0 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 CNA (VulnCheck)
  • CISA KEV Not listed.
  • EPSS 0.0015, the 4th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:06 UTC First seen by agentprime
  2. 31 Oct 2026, 14:06 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.