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Malicious package

@servicetitan/carto-tokensnpm

@servicetitan/carto-tokens is a confirmed malicious npm package (MAL-2026-11837) that steals credentials and exfiltrates sensitive data (malicious versions 0.3.1, 0.3.2, 0.3.3…). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in @servicetitan/carto-tokens (npm)

MAL-2026-11837
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall @servicetitan/carto-tokens

What this malware does

npm/@servicetitan/carto-tokens is affected by the large-scale, self-propagating npm supply-chain worm of 2026-08-04 (the "Shai-Hulud: Here We Go Again" wave) — the same campaign that began with the compromise of the keyv and cacheable maintainer account. The listed version(s) were trojanized and republished by the worm after it reached an npm publish token belonging to a maintainer in this namespace; the payload enumerates every package a stolen token controls and republishes each with the same hook, so many packages under this scope were poisoned in the same short window. Every poisoned release adds a preinstall hook ("preinstall": "node setup.mjs") that runs on a bare npm install, before any project code. setup.mjs downloads a standalone Bun runtime and runs a byte-identical, heavily obfuscated ~728 KB second-stage credential stealer (shipped as Math_Symbol.js / math_init.js). It harvests GitHub, npm, AWS, GCP, Azure, HashiCorp Vault and Kubernetes credentials plus generic secrets and private keys (TruffleHog-style sweep), reads CI/CD secrets and identifies build runners, then republishes further packages the stolen token can reach. Rather than a fixed command-and-control host, it exfiltrates stolen findings to attacker-created GitHub repositories (descriptions reading "Shai-Hulud: Here We Go Again") and over DNS. Treat any environment that installed an affected version (with install scripts enabled) as compromised: rotate and revoke all reachable credentials (npm and GitHub tokens, cloud keys, Vault/Kubernetes secrets, and CI org/repo secrets). Part of the August 2026 npm worm that poisoned 400+ packages across many organizations.

package.json declares scripts.preinstall='node setup.mjs'. setup.mjs is a hex-obfuscated launcher (_0xNNNN identifiers, per-function string-lookup dictionaries) that downloads the Bun runtime from https://github.com/oven-sh/bun/releases/download/bun-v1.3.13, extracts the platform-specific Bun binary to a temp directory, chmods it executable, and invokes it via execFileSync against a sibling file math_init.js. math_init.js is a 727KB Bun-compiled bundle (// @bun @bun-cjs header) obfuscated with a rotated string-array (WV8StW rotator + n7gIxM lookup table); its behavior cannot be inspected by Node-based tooling because it runs under the freshly downloaded Bun runtime. The package advertises itself as a design-tokens library that emits JSON/vanilla-extract/motion/react-native assets and has no functional need to fetch a separate JavaScript runtime or execute a compiled bundle at install time. Neither setup.mjs nor math_init.js is included in package.json's files allowlist (which lists only build/vanilla-extract, build/motion, build/react-native, README.md), and the README documents no preinstall step, no Bun download, and no math_init.js — the install-time files are present in the tarball despite not appearing in the declared manifest. The combination of preinstall auto-execution, alternate-runtime evasion of Node-based scanners, heavy obfuscation of both the launcher and the payload, purpose mismatch with the advertised design-token functionality, and files-allowlist smuggling matches an alternate-runtime dropper compromise of the scoped package.

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

7 flagged
0.3.10.3.20.3.30.3.40.3.50.3.60.3.7

Indicators of compromise (SHA-256)

1c43a9c8542d8ccb08fea4a13a1de50fb516b6b47cd70edd280ef6c759f7cb39
0cda6887df1c74912f107354e60e3803cec29ade1e17f7be2ded614db066af4b

Detection & response playbook

Credential / info stealer
  1. Find it

    Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for @servicetitan/carto-tokens (7 malicious versions). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging @servicetitan/carto-tokens across your stack and pipelines.

  2. If you installed it — respond

    @servicetitan/carto-tokens 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.

  3. Did it already run?

    If @servicetitan/carto-tokens 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.

  4. How O3 protects you

    O3 blocks @servicetitan/carto-tokens 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. @servicetitan/carto-tokens on npm has been identified as a malicious package (versions 0.3.1, 0.3.2, 0.3.3, 0.3.4, 0.3.5, 0.3.6, 0.3.7 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

GHSA-28qx-rhw7-pmggIN-MAL-2026-012039

References

Credits

  • Aikido Security · finder
  • Amazon Inspector · finder
  • SafeDep · finder
  • Socket Threat Research Team · finder

Detect & block this

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

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