MAL-2026-887

    Dashboard / Malicious Package / MAL-2026-887

    MAL-2026-887

    Published: 13 Feb 2026Last Modified: 23 Feb 2026Aliases: 
    GHSA-2mj4-8c65-f5p4

    Summary: Malicious code in pyrefly (npm)

    Details: Source: amazon-inspector (f731c9ac1e4183a530b005b34a0e1331b1dc61ef8fc60aea56170766e444a48e) The package pyrefly was found to contain malicious code. Source: ghsa-malware (588445ae77d1fbd6e2123a29bd2331067492d3a518d7dbbc3a1d57a400622e83) Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

    References: https://github.com/advisories/GHSA-2mj4-8c65-f5p4

    Affected packages

    Package

    Name: pyrefly

    Purl: pkg:npm/pyrefly

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    MAL-2026-887 | CVE-DB