Vulnerability details
CVE-2026-86199
pmmp PocketMine-MP
PocketMine-MP before 5.43.1 Denial of Service via unauthenticated login
CVSS 4.0
8.7High
Official description
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 scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.7High | 4.0 | CVEProject cvelistV5 (CNA) (VulnCheck) | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N |
| 7.5High | 3.1 | CVEProject cvelistV5 (CNA) (VulnCheck) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| pmmp | PocketMine-MP | v < 5.43.1 | CVEProject cvelistV5 (CNA) |
References and advisories
4- https://github.com/pmmp/PocketMine-MP/commit/e4aaef4ee0f769b52dc0347a1d6da403b9691115 patch
- https://github.com/pmmp/PocketMine-MP/commit/8c75a1d739e8e190d3cc2338b25cebcc9c052b1b patch
- https://www.vulncheck.com/advisories/pocketmine-mp-before-5.43.1-denial-of-service-via-unauthenticated-login third-party-advisory
- https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-g2fj-p69p-9chp vendor-advisory
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Details
- Published
- 2026-09-09
- Last updated
- 2026-09-09
- State
- Published
- Assigner (CNA)
- VulnCheck
Exploit prediction (EPSS)
0.46%
Probability of exploitation in 30 days
40.6%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- Proof of concept
- Technical impact
- Partial
Weaknesses (CWE)
- CWE-184Incomplete List of Disallowed Inputs