MalwarePublished 13 Aug 2026

keyed-mutex-map (npm) · Malicious Code

Affects keyed-mutex-mapSource GCVE Database

Malicious package : remove keyed-mutex-map and rotate any secrets on hosts that installed it.

Data as of 14 Aug 2026, 16:47 UTC

Classification

Malicious package

Published to npm · OSV MAL-2026-14003

What to do

Remove keyed-mutex-map from every project, lockfile and image that pulls it in. Treat any host that installed it as compromised: rotate the credentials, tokens and keys it could read, from a clean machine.

Affected software

Product	Affected	Fixed in
npmkeyed-mutex-map	Affected =2.1.2	Fixed in–

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Description

The npm package 'keyed-mutex-map' version 2.1.2 contains malicious code or depends on a package with malicious code. Installation or execution of this package can lead to full compromise of the affected system. Secrets and keys stored on the compromised system should be rotated immediately from a different, trusted machine. Removing the package alone may not fully eliminate the malicious presence due to potential persistent control established by the attacker.

Impact

Systems with 'keyed-mutex-map' version 2.1.2 installed or running are considered fully compromised, potentially allowing attackers full control over the affected computer. This compromises confidentiality, integrity, and availability of data and system resources. Secrets and keys stored on the system are at risk of exposure and misuse.

Defensive guidance

Remove the 'keyed-mutex-map' package version 2.1.2 from all affected systems. Immediately rotate all secrets and keys from a different, trusted machine to prevent unauthorized access. Because the system may be fully compromised, consider rebuilding or restoring the system from a known good backup to ensure complete removal of malicious code. Patch status is not applicable as this is a malicious package rather than a vulnerability with an official fix.

Summary

The 'keyed-mutex-map' npm package version 2.1.2 has been identified as containing malicious code or relying on a dependency that contains malicious code. According to sources including Amazon Inspector and GitHub Security Advisories, any system with this package installed or running should be considered fully compromised. The malicious code can lead to unauthorized control over the system, risking exposure of secrets and keys. Immediate rotation of all secrets and keys from a separate, uncompromised system is recommended. Removal of the package does not guarantee removal of all malicious artifacts or backdoors.

References

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What to do

Affected software

Description

AI analysisMachine-generated, updated 14 Aug 2026, 16:47 UTC

Technical details

References

Community reviews