v018-axios-cdntestnpm
Advisory published Updated
v018-axios-cdntest is a confirmed malicious npm package (MAL-2026-5529) that steals credentials and exfiltrates sensitive data (malicious versions 1.0.0, 1.0.1, 1.0.2…). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in v018-axios-cdntest (npm)
What this malware does
Package impersonates axios v0.18.0 (index.js carries the genuine axios v0.18.0 | (c) 2018 by Matt Zabriskie header and sets window.axios={}, window.__cdn_package='[email protected]') but ships two malicious payloads. (1) index.js appends an IIFE that reads document.cookie and sends it via XMLHttpRequest GET to a hardcoded webhook.site endpoint (https://webhook.site/ef6e7978-f936-4664-b3ff-296a250e1735?c=<cookies>), firing on the page load event so any consumer loading this script via CDN or bundle leaks all accessible cookies to the attacker. (2) Sibling xmr-min.js is an in-browser Monero cryptojacker that constructs a Web Worker from a Blob and uses eval on dynamic JS to mine to wallet 44AFFq5kSiGBoZ4NMDwYtN18obc8AemS33DBLWs3H7otXft3XjrpDtQGv7SqSsaBYBb98uNbr2VBBEt7f2wfn3RVGQBEP3A via pool.supportxmr.com:4444. The package is intended to be loaded through jsdelivr (cdn.jsdelivr.net/npm/v018-axios-cdntest@.../xmr-min.js), so any site embedding it leaks user cookies and burns visitors' CPU. The package's own description self-labels these payloads.
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.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Credential / info stealerFind it
Search your lockfiles and build artifacts for v018-axios-cdntest (4 malicious versions).
If you installed it — respond
v018-axios-cdntest 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 v018-axios-cdntest 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
Detect & block this
O3 blocks v018-axios-cdntest-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.