Which versions of constant-values are malicious?

The following npm versions of constant-values are flagged malicious: 100.0.0. Treat any of these as compromised.

How do I remediate constant-values if I installed it?

Remove constant-values 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.

I already installed constant-values — how do I know if it already compromised me?

If constant-values 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.

Is constant-values part of a known attack campaign?

Yes — constant-values is associated with the RLMA-2026-01219 campaign. Packages in the same campaign often share infrastructure and payloads, so check whether any related packages are also in your dependency tree.

How do I find constant-values across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for constant-values (version 100.0.0).

Malicious package

constant-valuesnpm

Advisory published Mar 18, 2026Updated Mar 23, 2026

constant-values is a confirmed malicious npm package (MAL-2026-1699) that executes malicious code on install (malicious version 100.0.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in constant-values (npm)

MAL-2026-1699

Immediate action

Remove the package, then rotate any secrets the build/runtime could reach.

npm uninstall constant-values

What this malware does

The package constant-values was found to contain malicious code.

Malicious versions

1 flagged

100.0.0

Indicators of compromise (SHA-256)

477237ea4f4265428d94e9b19957fb874d9a1e26162f8f2bfb5a78a360ac3346

3eef7c3f6399148abe5dab50aeb81b1f42322e6ab93c0a116e7426486bb8ef0a

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for constant-values (version 100.0.0).
If you installed it — respond
Remove constant-values 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 constant-values 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

No. constant-values on npm has been identified as a malicious package (version 100.0.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2026-01219

Credits

Amazon Inspector · finder
ReversingLabs · finder

Detect & block this

O3 blocks constant-values-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.

Malware detection Runtime egress monitoring

Explore

All malware advisories How O3 detects malware Vulnerability database