ac-element-engagementnpm
Advisory published Updated
ac-element-engagement is a confirmed malicious npm package (MAL-2026-780) that executes malicious code on install (malicious versions 3.0.1, 99.9.9). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in ac-element-engagement (npm)
What this malware does
The package ac-element-engagement was found to contain malicious code.
The OpenSSF Package Analysis project identified 'ac-element-engagement' @ 3.0.1 (npm) as malicious.
It is considered malicious because:
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The package communicates with a domain associated with malicious activity.
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The package executes one or more commands associated with malicious behavior.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Malicious packageFind it
Search your lockfiles and build artifacts for ac-element-engagement (2 malicious versions).
If you installed it — respond
Remove ac-element-engagement from your project and lockfile, then assume any secrets accessible to the build or runtime were exposed: rotate API keys, tokens, and credentials, and audit for unexpected outbound activity or persistence.
Did it already run?
If ac-element-engagement was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.
Frequently asked questions
Campaign
References
Credits
- Amazon Inspector · finder
- OpenSSF: Package Analysis · finder
- ReversingLabs · finder
Detect & block this
O3 blocks ac-element-engagement-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the malicious outbound activity and severs the channel.