Which versions of @nimbusedge2/authxsas1 are malicious?

The following npm versions of @nimbusedge2/authxsas1 are flagged malicious: 1.1.0. Treat any of these as compromised.

How do I remediate @nimbusedge2/authxsas1 if I installed it?

@nimbusedge2/authxsas1 is built to steal secrets, so assume every credential the build or runtime could read is compromised. Remove it from your project and lockfile, then rotate ALL exposed secrets — npm/registry tokens, cloud keys, CI/CD secrets, SSH keys, and any .env values — from a known-clean machine. Audit logs for unauthorized use of those credentials.

I already installed @nimbusedge2/authxsas1 — how do I know if it already compromised me?

If @nimbusedge2/authxsas1 was ever installed, its post-install/runtime payload may have already executed. O3's L7 egress monitoring and runtime eBPF sensors detect the credential exfiltration or command-and-control callback after install and block the malicious outbound channel, so you catch and contain the actual compromise — not just the presence of the package.

Is @nimbusedge2/authxsas1 part of a known attack campaign?

Yes — @nimbusedge2/authxsas1 is associated with the IN-MAL-2026-020200 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 @nimbusedge2/authxsas1 across my projects, lockfiles, and CI pipelines?

Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for @nimbusedge2/authxsas1 (version 1.1.0). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging @nimbusedge2/authxsas1 across your stack and pipelines.

Malicious package

@nimbusedge2/authxsas1npm

@nimbusedge2/authxsas1 is a confirmed malicious npm package (MAL-2026-16304) that steals credentials and exfiltrates sensitive data (malicious version 1.1.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in @nimbusedge2/authxsas1 (npm)

MAL-2026-16304

Immediate action

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

npm uninstall @nimbusedge2/authxsas1

What this malware does

package.json declares a preinstall lifecycle script that runs automatically on npm install. The script uses curl to fetch the cloud instance metadata service (169.254.169.254, accessed via the nip.io wildcard-DNS wrapper 169.254.169.254.nip.io/latest/meta-data/), base64-encodes the response, and POSTs it to a hardcoded third-party endpoint at http://canarytokens.com/terms/7dc94zmd3so67n5vbz5bxmt7v/contact.php. On cloud and CI installers this discloses instance identity metadata and, where IMDSv1 is reachable, temporary IAM credentials to the destination. The package's description field self-labels the beacon as an 'Authorized report' with a wearehackerone.com contact address; that label is author-controlled and does not change the behavior class — installing the package causes installer-side host and cloud metadata to be sent off-host to a canarytoken beacon.

Malicious versions

1 flagged

1.1.0

Indicators of compromise (SHA-256)

0b27280b8f4c1e044e49b77e58c7c8de895a002f51be51756bc40e909d3f6fa1

Detection & response playbook

Credential / info stealer

Find it
Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for @nimbusedge2/authxsas1 (version 1.1.0). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging @nimbusedge2/authxsas1 across your stack and pipelines.
If you installed it — respond
@nimbusedge2/authxsas1 is built to steal secrets, so assume every credential the build or runtime could read is compromised. Remove it from your project and lockfile, then rotate ALL exposed secrets — npm/registry tokens, cloud keys, CI/CD secrets, SSH keys, and any .env values — from a known-clean machine. Audit logs for unauthorized use of those credentials.
Did it already run?
If @nimbusedge2/authxsas1 was ever installed, its post-install/runtime payload may have already executed. O3's L7 egress monitoring and runtime eBPF sensors detect the credential exfiltration or command-and-control callback after install and block the malicious outbound channel, so you catch and contain the actual compromise — not just the presence of the package.
How O3 protects you
O3 blocks @nimbusedge2/authxsas1 before install through its supply-chain scanner, and if it has already run, detects and severs the exfiltration or C2 callback at runtime through L7 egress monitoring and eBPF.

Frequently asked questions

No. @nimbusedge2/authxsas1 on npm has been identified as a malicious package (version 1.1.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-020200

References

npmjs.com

Credits

Amazon Inspector · finder

Detect & block this

O3 blocks @nimbusedge2/authxsas1-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.

Malware detection Runtime egress monitoring

Explore

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