CVE-2026-86199
highPocketMine-MP versions before 5.43.1 fail to properly validate the Certificate field during offline login authentication.
PocketMine-MP versions before 5.43.1 fail to properly validate the Certificate field during offline login authentication. Unauthenticated players can trigger an uninitialized property access error that crashes the server.
CVSS
7.5
7.5 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Severity source: NVD CVSS v3.1 (disclosure@vulncheck.com)
Timeline (UTC)
Published: 2026-09-09 14:17
Modified: 2026-09-09 20:20
NVD status: Deferred
Last synced 2 days ago
Verified against the source API 2026-10-27 06:52 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/pmmp/PocketMine-MP/commit/8c75a1d739e8e190d3cc2338b25cebcc9c052b1b disclosure@vulncheck.com
- https://github.com/pmmp/PocketMine-MP/commit/e4aaef4ee0f769b52dc0347a1d6da403b9691115 disclosure@vulncheck.com
- https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-g2fj-p69p-9chp disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/pocketmine-mp-before-5.43.1-denial-of-service-via-una... disclosure@vulncheck.com
- https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-g2fj-p69p-9chp 134c704f-9b21-4f2e-91b3-4a467353bcc0
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 06:52 UTC · record ↗