CVE-2022-24300Network attack vector

Arbitrary item metadata modification via control delimiters

Published Feb 2, 2022 · Updated Aug 3, 2024

ItemStack metadata injection in Minetest before 5.4.0 allows remote attackers to alter item metadata through saved mod input. ItemStackMetadata::setString accepted names and values containing serialization control delimiters, causing later deserialization to interpret embedded bytes as new keys or pairs. Exposure requires a mod to save attacker-controlled ItemStack input; consequences include forged keys, unlimited item creation, or service interruption of an unspecified type.

CVSS severity8.2
High
EPSS probability1.67%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

ItemStack metadata injection in Minetest before 5.4.0 allows remote attackers to alter item metadata through saved mod input. ItemStackMetadata::setString accepted names and values containing serialization control delimiters, causing later deserialization to interpret embedded bytes as new keys or pairs. Exposure requires a mod to save attacker-controlled ItemStack input; consequences include forged keys, unlimited item creation, or service interruption of an unspecified type.

The record

CVE
CVE-2022-24300
Published
Feb 2, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1565
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 2, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5NIST NVDAV:N/AC:L/Au:N/C:P/I:P/A:P
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.2GitHub Security AdvisoryCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1565Data Manipulation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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