Vulnerability · CVE-2026-86198
PocketMine-MP has potential memory/network vulnerability from repeated ResourcePackClientResponsePacket packets
Published Sep 9, 2026 · catalog updated Oct 29, 2026 · PocketMine-MP
Last checked Oct 30, 2026. A connected source was read within the last 7 days.
Check if you run it
No confirmed exploitation is on record for CVE-2026-86198. EPSS is 0.38%. Act only if a listed version of PocketMine-MP is installed.
Gaps on this record
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
Same product and reporting
- CVE-2023-7332 · High
- Severity
- Low2.3
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.38%
- Remediation
- Advisory link
- Affected products
- Packagist pocketmine/pocketmine-mp · vendor pmmp PocketMine-MP
### Summary During the resource pack stage of logging in, after the server sends , a malicious client can send a batch of multiple packets with status causing the server to repeatedly execute pre-spawn progression. ### Impact Multiple objects can be created for just a single session, increasing memory usage and amplifying outbound network traffic from duplication of large pre-spawn packets such as and . ### Workarounds Plugins can use their own classes that reject/ignore any extra packets. ### Patches This issue was patched in https://github.com/pmmp/PocketMine-MP/commit/7a27894146a04964ab628ed9033140fdbf887ff3 and released in 5.44.2.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- Packagist pocketmine/pocketmine-mp0 → 5.44.2
- vendor pmmp PocketMine-MPversion unspecified
How to fix CVE-2026-86198
Upgrade
CVE-2026-86198 lists a fix boundary at 5.44.2. Compare the installed build with that boundary before you change production.
Version check
Fixed in 5.44.2
Advisory
Open the cve_org record and follow its fix.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2026-86198. EPSS is 0.38%. Act only if a listed version of PocketMine-MP is installed.
Which versions are affected?
Compare what you have installed with 0 → 5.44.2. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
CWE-837. EPSS 0.38%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
Timeline
Detection, updates, and resolution for this record.
Oct 29, 2026 · GitHub Advisory Database
Detected
### Summary During the resource pack stage of logging in, after the server sends , a malicious client can send a batch of multiple packets with status causing the server to repeatedly execute pre-spawn progression. ### Impact Multiple objects can be created for just a single session, increasing memory usage and amplifying outbound network traffic from duplication of large pre-spawn packets such as
Oct 29, 2026 · GitHub Advisory Database
Fix available
pocketmine/pocketmine-mp fixed in 5.44.2
Oct 29, 2026 · GitHub Advisory Database
Fix available
pocketmine/pocketmine-mp fixed in 5.44.2
Oct 29, 2026 · GitHub Advisory Database
Updated
### Summary During the resource pack stage of logging in, after the server sends , a malicious client can send a batch of multiple packets with status causing the server to repeatedly execute pre-spawn progression. ### Impact Multiple objects can be created for just a single session, increasing memory usage and amplifying outbound network traffic from duplication of large pre-spawn packets such as
Sources
- CVE.orgVulnerability recordCVE-2026-86198
PocketMine-MP versions before 5.44.2 fail to properly validate multiple ResourcePackClientResponsePacket packets with STATUS_COMPLETED status during resource pack handling. Malicious clients can send batches of these packets to repeatedly trigger pre-spawn progression, creating d
cve.org - GitHub Advisory DatabasePackage advisoryGHSA-pg53-p7qp-65cv
GitHub Advisory Database record mirrored by OSV.
github.com - OpenSSF OSV / OSV ScannerPackage advisoryGHSA-pg53-p7qp-65cv
PocketMine-MP has potential memory/network vulnerability from repeated ResourcePackClientResponsePacket packets
osv.dev
References
Freshness
Last verified in this catalog Oct 30, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.
- CVE.orgOct 30, 2026
- GitHub Advisory DatabaseOct 30, 2026
- OpenSSF OSV / OSV ScannerOct 30, 2026