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npm · Malicious package advisory

Malware

icu-messageformat

GHSA-fcjq-f3w4-jmm4

Malicious code in icu-messageformat (npm)

Details

**Severity:** Critical

**Affected versions:** `> 0`

## Source: amazon-inspector (a1fc5a2af1395cc93448f25e96d6c16427b37dfddad7075ec3b9409f012a0346)
The package icu-messageformat was found to contain malicious code.

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Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/05b419acdcdd6e02782971da765f32a22a1aed8e/osv/malicious/npm/icu-messageformat/MAL-2025-49416.json))

**References:**
- https://github.com/ossf/malicious-packages/blob/05b419acdcdd6e02782971da765f32a22a1aed8e/osv/malicious/npm/icu-messageformat/MAL-2025-49416.json
- https://github.com/advisories/GHSA-fcjq-f3w4-jmm4

Compromised versions (1)

  • > 0

Any computer that installed or ran a compromised version should be considered fully compromised. Rotate every secret on that machine from a clean environment.