CVE-2024-31446Public exploitNetwork attack vector

Server hang via recursive xpcall timeout bypass

Published Apr 16, 2024 · Updated Aug 2, 2024

Denial of service in MightyPirates OpenComputers before 1.8.4 allows remote authenticated users to hang Minecraft servers via Lua code. Recursive xpcall message-handler calls in machine.lua repeatedly catch timeout and resource-exhaustion errors, preventing the native Lua VM from yielding and leaving its Machine lock held. Exploitation requires permission to run Lua on a mod device and causes an indefinite server-thread block, forced shutdown, and loss of state since the latest save.

CVSS severity7.7
High
EPSS probability0.60%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in MightyPirates OpenComputers before 1.8.4 allows remote authenticated users to hang Minecraft servers via Lua code. Recursive xpcall message-handler calls in machine.lua repeatedly catch timeout and resource-exhaustion errors, preventing the native Lua VM from yielding and leaving its Machine lock held. Exploitation requires permission to run Lua on a mod device and causes an indefinite server-thread block, forced shutdown, and loss of state since the latest save.

The record

CVE
CVE-2024-31446
Published
Apr 16, 2024
Updated
Aug 2, 2024
Vendor
MightyPirates
Product
OpenComputers
Classifications
CWE-770, T1499.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 16, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 1.8.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

MightyPirates · OpenComputersversion=< 1.8.4

Published CVSS scores

7.7GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-770Allocation of Resources Without Limits or Throttling
T1499.004Endpoint Denial of Service: Application or System Exploitation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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