MalwarePublished 24 Apr 2026Updated 4 May 2026

@m0ntana/app.web (npm) · Malicious Code

Affects @m0ntana/app.webSource GCVE Database

Malicious package : remove @m0ntana/app.web and rotate any secrets on hosts that installed it.

Data as of 27 Oct 2026, 01:09 UTC

Classification

Malicious package

Published to npm · OSV MAL-2026-3065

What to do

Remove @m0ntana/app.web 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
npm@m0ntana/app.web	Affected 99.0.2 – 99.0.6 4 affected builds	Fixed in–

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Description

The npm package '@m0ntana/app.web' versions 99.0.2, 99.0.3, 99.0.5, and 99.0.6 contain malicious code that executes commands associated with malicious behavior. Any system with this package installed should be considered fully compromised, and all secrets and keys stored on that system must be rotated immediately from a different, trusted machine. Removing the package alone does not guarantee removal of all malicious software introduced by it.

Impact

Systems with the affected versions of '@m0ntana/app.web' installed are considered fully compromised. Attackers may have gained full control, risking exposure of all stored secrets and keys. The malicious code execution can lead to unauthorized access, data theft, and persistent system compromise.

Defensive guidance

Immediately remove the '@m0ntana/app.web' package versions 99.0.2, 99.0.3, 99.0.5, and 99.0.6 from affected systems. Rotate all secrets and keys stored on the compromised system from a separate, trusted machine. Because removal of the package may not eliminate all malicious artifacts, consider performing a full system investigation and remediation to ensure no persistent malware remains.

Summary

The package '@m0ntana/app.web' at specific versions (99.0.2, 99.0.3, 99.0.5, 99.0.6) was identified by multiple sources including Amazon Inspector, GHSA Malware, and the OpenSSF Package Analysis project as containing malicious code. This code executes commands linked to malicious activities, effectively compromising any computer on which the package is installed. The compromise is severe enough that all stored secrets and keys should be rotated from a separate, uncompromised system. The package removal is necessary but insufficient to fully remediate the infection due to potential persistence mechanisms.

References

github.com/advisories/GHSA-m6jr-4x3f-2ph2 (opens in a new tab)

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What to do

Affected software

Description

AI analysisMachine-generated, updated 27 Oct 2026, 01:09 UTC

Technical details

References

Community reviews