CVE-2022-51018 json
PocketMine-MP before 3.26.5 and 4.0.5 Input Validation via Book Pages
published 2022-01-06 4 y ago modified 2026-10-08 31 d ago also GHSA-p62j-hrxm-xcxf , EUVD-2022-56047
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 38%
- public exploits
- 0
- none known
Summary
PocketMine-MP before 3.26.5 and 4.0.x before 4.0.5 does not limit book page text length, page count, or author/title length. A player who obtains a writable book can create oversized NBT ('book bombs'), causing excess bandwidth consumption and server crashes (exceeding the 1 MB chunk size limit when saving region-based worlds in PM3, or exceeding the 32 KiB TAG_String limit in PM4).
Patch / fix
- packagist pocketmine/pocketmine-mp 3.26.5, 4.0.5
- pmmp PocketMine-MP 3.26.5, 4.0.5
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 55 d ago
Exploit prediction
0.44% chance of exploitation in the next 30 days, higher than 38% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 7.1 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N |
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| CNA | 4.0 | 7.1 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| GitHub | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | pocketmine/pocketmine-mp | <3.26.5 >=4.0.0, <4.0.5 |
3.26.5 4.0.5 |
Affected products
- pmmp PocketMine-MP
Classification
- Weakness
-
- CWE-400 Uncontrolled Resource Consumption
References
-
github.com
/pmmp/PocketMine-MP/security/advisories/GHSA-p62j-hrxm-xcxf
vendor-advisory, web
-
vulncheck.com
/advisories/pocketmine-mp-before-3.26.5-input-validation-via-book-pages
third-party-advisory
-
github.com
/pmmp/PocketMine-MP
package
Sources
- CVE List CVE-2022-51018
- GitHub Advisory GHSA-p62j-hrxm-xcxf
- NVD CVE-2022-51018
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