CVE-2026-86202

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreHIGH confidence

Score 4.3 from GitHub Security Advisory published 2026-09-09. a secondary CVSS source baseline 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
4.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.3Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

PocketMine-MP versions before 5.39.2 contain a network amplification vulnerability in ActorEventPacket handling that allows clients to trigger consuming animations for all visible players. Attackers can send crafted ActorEventPacket messages to spam animation events to other clients and waste server CPU and memory resources.

CVSS v3
4.3
EG Score
4.3(high)
EG Risk
19(Track)
EG Risk 19/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity43% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
18%
KEV
Not listed

Published

September 9, 2026

Last Modified

September 9, 2026

Advisory Details (3)

Auto-updated Sep 9, 2026
🔬 Proof of concept available. Patch available. Sources: github, github_commit.
generic

PocketMine-MP before 5.39.2 Network Amplification via ActorEventPacket | Advisories | VulnCheck

https://www.vulncheck.com/advisories/pocketmine-mp-before-5.39.2-network-amplification-via-actoreventpacket
github_commit

commit aeea1150a772 (pmmp/PocketMine-MP)

Fix landed in pmmp/PocketMine-MP commit aeea1150a772 — awaiting tagged release

https://github.com/pmmp/PocketMine-MP/commit/aeea1150a772a005b92bd418366f1b7cf1a91ab5
github Patch Available🟡 PoC Available

Network amplification vulnerability with `ActorEventPacket` · Advisory · pmmp/PocketMine-MP · GitHub

https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-7hmv-4j2j-pp6f

Vendor Advisories for CVE-2026-86202(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(1 across 1 ecosystem)
Packagist(1)
PackageVulnerable rangeFixed inDependents
pocketmine/pocketmine-mp3.0.0 ... 5.9.0 (377 versions)5.39.2—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 21× in last 7d / 33× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-19 03:14 UTCEG score recompute
  2. 2026-09-19 03:14 UTCGHSA enrichment
  3. 2026-09-18 19:28 UTCEPSS rescore
  4. 2026-09-18 05:08 UTCEG score recompute
  5. 2026-09-18 05:08 UTCGHSA enrichment
  6. 2026-09-17 19:32 UTCEPSS rescore
  7. 2026-09-17 07:01 UTCEG score recompute
  8. 2026-09-17 07:01 UTCGHSA enrichment
  9. 2026-09-16 14:09 UTCEPSS rescore
  10. 2026-09-16 08:54 UTCEG score recompute
  11. 2026-09-16 08:54 UTCGHSA enrichment
  12. 2026-09-16 05:15 UTCEPSS rescore
  13. 2026-09-15 09:49 UTCEG score recompute
  14. 2026-09-15 09:49 UTCGHSA enrichment
  15. 2026-09-15 03:12 UTCEPSS rescore
  16. 2026-09-15 03:12 UTCEPSS rescore
  17. 2026-09-14 11:42 UTCEG score recompute
  18. 2026-09-14 11:42 UTCGHSA enrichment
  19. 2026-09-13 13:36 UTCGHSA enrichment
  20. 2026-09-12 15:29 UTCEG score recompute
  21. 2026-09-12 15:29 UTCGHSA enrichment
  22. 2026-09-11 17:23 UTCEG score recompute
  23. 2026-09-11 17:23 UTCGHSA enrichment
  24. 2026-09-11 14:53 UTCEPSS rescore
  25. 2026-09-11 14:53 UTCEPSS rescore
Show 8 more
  1. 2026-09-10 18:48 UTCGHSA enrichment
  2. 2026-09-09 20:41 UTCEG score recompute
  3. 2026-09-09 20:41 UTCGHSA enrichment
  4. 2026-09-09 15:29 UTCEG score recompute
  5. 2026-09-09 14:50 UTCEG score recompute
  6. 2026-09-09 14:27 UTCEG score recompute
  7. 2026-09-09 13:46 UTCEG score recompute
  8. 2026-09-09 13:44 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-86202?
CVE-2026-86202 is a medium vulnerability published on September 9, 2026. PocketMine-MP versions before 5.39.2 contain a network amplification vulnerability in ActorEventPacket handling that allows clients to trigger consuming animations for all visible players. Attackers can send crafted ActorEventPacket messages to spam animation events to other clients and waste…
When was CVE-2026-86202 disclosed?
CVE-2026-86202 was first published in the National Vulnerability Database on September 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-86202 actively exploited?
CVE-2026-86202 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 81.9% of all scored CVEs.
What is the CVSS score of CVE-2026-86202?
CVE-2026-86202 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2026-86202?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-86202, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-86202

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