CVE-2022-51011

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreHIGH confidence

Score 4.3 from GitHub Security Advisory published 2026-09-07. 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 before 4.2.10 fails to validate the total length of incoming chat message blobs before splitting them by newline characters, allowing attackers to send large messages containing many newlines. Malicious clients can send megabyte-sized chat packets and bombard the server with thousands of such messages, causing server lockups lasting seconds or minutes.

CVSS v3
4.3
EG Score
4.3(high)
EG Risk
20(Track)
EG Risk 20/100SSVC: 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
37%
KEV
Not listed

Published

September 7, 2026

Last Modified

September 10, 2026

Advisory Details (3)

Auto-updated Sep 7, 2026
🔬 Proof of concept available. Patch available. Sources: github_commit, github.
generic

PocketMine-MP before 4.2.10 Denial of Service via Chat Messages | Advisories | VulnCheck

https://www.vulncheck.com/advisories/pocketmine-mp-before-4.2.10-denial-of-service-via-chat-messages
github Patch Available🟡 PoC Available

Denial-of-service vulnerability processing large chat messages containing many newlines · Advisory · pmmp/PocketMine-MP · GitHub

https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-gj94-v4p9-w672
github_commit

commit df33e179e5d3 (pmmp/PocketMine-MP)

Fix landed in pmmp/PocketMine-MP commit df33e179e5d3 — awaiting tagged release

https://github.com/pmmp/PocketMine-MP/commit/df33e179e5d3ff13b56a2d7060bf592b0f797258

Vendor Advisories for CVE-2022-51011(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 ... 4.2.9 (191 versions)4.2.10—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 16× 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. 2026-09-18 14:17 UTCEG score recompute
  2. 2026-09-18 14:17 UTCGHSA enrichment
  3. 2026-09-17 14:35 UTCGHSA enrichment
  4. 2026-09-16 14:53 UTCEG score recompute
  5. 2026-09-16 14:53 UTCGHSA enrichment
  6. 2026-09-16 14:05 UTCEPSS rescore
  7. 2026-09-16 05:11 UTCEPSS rescore
  8. 2026-09-15 15:05 UTCEG score recompute
  9. 2026-09-15 15:05 UTCGHSA enrichment
  10. 2026-09-15 03:07 UTCEPSS rescore
  11. 2026-09-14 15:23 UTCEG score recompute
  12. 2026-09-14 15:23 UTCGHSA enrichment
  13. 2026-09-13 16:44 UTCEPSS rescore
  14. 2026-09-13 15:37 UTCGHSA enrichment
  15. 2026-09-12 15:50 UTCEG score recompute
  16. 2026-09-12 15:50 UTCGHSA enrichment
  17. 2026-09-11 16:08 UTCEG score recompute
  18. 2026-09-11 16:08 UTCGHSA enrichment
  19. 2026-09-11 14:50 UTCEPSS rescore
  20. 2026-09-11 09:34 UTCEPSS rescore
  21. 2026-09-10 16:17 UTCEG score recompute
  22. 2026-09-10 16:17 UTCGHSA enrichment
  23. 2026-09-10 15:27 UTCEG score recompute
  24. 2026-09-10 15:27 UTCGHSA enrichment
  25. 2026-09-09 23:18 UTCEG score recompute
Show 8 more
  1. 2026-09-09 23:18 UTCGHSA enrichment
  2. 2026-09-08 21:57 UTCEPSS rescore
  3. 2026-09-08 20:13 UTCGHSA enrichment
  4. 2026-09-08 13:10 UTCEG score recompute
  5. 2026-09-08 13:09 UTCGHSA enrichment
  6. 2026-09-07 13:23 UTCEG score recompute
  7. 2026-09-07 13:04 UTCEG score recompute
  8. 2026-09-07 13:01 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2022-51011?
CVE-2022-51011 is a medium vulnerability published on September 7, 2026. PocketMine-MP before 4.2.10 fails to validate the total length of incoming chat message blobs before splitting them by newline characters, allowing attackers to send large messages containing many newlines. Malicious clients can send megabyte-sized chat packets and bombard the server with thousands…
When was CVE-2022-51011 disclosed?
CVE-2022-51011 was first published in the National Vulnerability Database on September 7, 2026, with the most recent update on September 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-51011 actively exploited?
CVE-2022-51011 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 63.0% of all scored CVEs.
What is the CVSS score of CVE-2022-51011?
CVE-2022-51011 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2022-51011?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-51011, 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-2022-51011

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