# CVE-2025-71417: PocketMine-MP resource pack UUID validation denial of service

Source: https://junglewise.ai/threats/cve-2025-71417-pocketmine-mp-resource-pack-uuid-validation-denial-of-service  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-09. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2025-71417 · Severity: medium · CVSS 6.5 · Published 2026-09-09

PocketMine-MP is a server software for the Minecraft Bedrock Edition game. The software fails to validate that resource pack requests do not contain duplicate entries, allowing an authenticated attacker to send the same pack UUID multiple times in a single request. This causes the server to send the same pack repeatedly, rapidly exhausting server memory and crashing the service.

Technologies: [pocketmine/pocketmine-mp (Packagist)](https://junglewise.ai/threats/technologies/pocketmine-pocketmine-mp). Vendors: [Packagist](https://junglewise.ai/threats/vendors/packagist).

## Quick answers

**Is CVE-2025-71417 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2025-71417 being exploited in the wild.

**How severe is CVE-2025-71417?** Medium severity, with a CVSS score of 6.5, published 9 September 2026.

**Which products and versions are affected?** pocketmine/pocketmine-mp (Packagist) ECOSYSTEM:introduced=0,fixed=5.32.1.

**Is there a fix for CVE-2025-71417?** Yes. pocketmine/pocketmine-mp (Packagist): upgrade to 5.32.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2025-71417 attacked?** It is attacked over the network, in a hosted service.

**Am I affected by CVE-2025-71417?** Check whether you run pocketmine/pocketmine-mp (Packagist) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- pocketmine/pocketmine-mp (Packagist): upgrade to 5.32.1 or later

  ```sh
  composer require pocketmine/pocketmine-mp:^5.32.1
  ```


## Technical details

The vulnerability exists in the STATUS_SEND_PACKS handling of ResourcePackClientResponsePacket, where the packIds array is processed without verifying uniqueness. An authenticated client can craft a malicious packet containing many duplicate valid pack UUIDs, causing the server to transmit the same resource pack multiple times and consume memory with each duplicate. The root cause is insufficient input validation—the code assumes clients will behave according to the Bedrock protocol specification, but a custom client can violate this assumption. An authenticated attacker can exploit this remotely by joining the server and sending a crafted packet; no privilege escalation or user interaction is required beyond server access. The fix, included in version 5.32.1, removes duplicates from the incoming array and disconnects clients that send excessive duplicates.

## Affected products

- PocketMine PocketMine-MP before 5.32.1

## Identifiers

- CVE-2025-71417
- GHSA-fqqv-56h5-f57g

## Timeline

- 2025-08-30: disclosed: GitHub Security Advisory published
- 2025-09-09: advisory: CVE-2025-71417 published on NVD
- 2025-09-09: patched: Fix released in version 5.32.1

## References

- [https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-fqqv-56h5-f57g](https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-fqqv-56h5-f57g)
- [https://www.vulncheck.com/advisories/pocketmine-mp-before-5.32.1-denial-of-service-via-resourcepackclientresponsepacket](https://www.vulncheck.com/advisories/pocketmine-mp-before-5.32.1-denial-of-service-via-resourcepackclientresponsepacket)

## Related threats

- [PocketMine-MP denial of service in ModalFormResponsePacket handling](https://junglewise.ai/threats/cve-2026-86204-pocketmine-mp-denial-of-service-in-modalformresponsepacket)
- [PocketMine-MP item duplication via despawn entity attack race condition](https://junglewise.ai/threats/cve-2026-86203-pocketmine-mp-item-duplication-via-despawn-entity-attack-race)
- [PocketMine-MP network amplification in ActorEventPacket](https://junglewise.ai/threats/cve-2026-86202-pocketmine-mp-network-amplification-in-actoreventpacket)
- [PocketMine-MP denial of service in LoginPacket processing](https://junglewise.ai/threats/cve-2026-86201-pocketmine-mp-denial-of-service-in-loginpacket-processing)
- [PocketMine-MP denial of service in LoginPacket handler](https://junglewise.ai/threats/cve-2026-86200-pocketmine-mp-denial-of-service-in-loginpacket-handler)