MAL-2026-12021

    Dashboard / Malicious Package / MAL-2026-12021

    MAL-2026-12021

    Published: 4 Aug 2026Last Modified: 5 Aug 2026Aliases: 
    GHSA-xvcf-q9q3-xhg7

    Summary: Malicious code in @keyv/serialize-msgpackr (npm)

    Details: Source: amazon-inspector (43046321629b6cdd57488aa3c6cc4d826a41f11330ae467c7f7e8c5ed9e8dbc0) Package presents as a serialization adapter for keyv using msgpackr. No static or behavioral indicators of exfiltration, install-time remote code execution, silent-relay, credential access, dropper behavior, or backdoor were observed in the scanned files. Source: ghsa-malware (ff69f3411eb750c7021dc27903c0ae735e3817b4d67aad7a5b52757f4c3567c7) 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-xvcf-q9q3-xhg7, https://www.npmjs.com/package/@keyv/serialize-msgpackr/v/6.0.0

    Affected packages

    Package

    Name: @keyv/serialize-msgpackr

    Purl: pkg:npm/%40keyv/serialize-msgpackr

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    6.0.0
    MAL-2026-12021 | CVE-DB