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Malicious package

path-to-regexp-updatednpm

Malicious code in path-to-regexp-updated (npm) Remove it immediately and rotate any exposed credentials.

MAL-2026-1808
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall path-to-regexp-updated

What this malware does

The package path-to-regexp-updated was found to contain malicious code.

Malicious versions

2 flagged
99.99.199.99.2

Indicators of compromise (SHA-256)

7e9b182f73651ab54954f6beeec3794607fa5a4bc485daded6532b0bbb0bdbf6
d4f886299ed0f104de3331f447c127332d6de7b5d3bff5954553bb5c50099dfc

Detection & response playbook

Malicious package
  1. Find it

    Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for path-to-regexp-updated (2 malicious versions). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging path-to-regexp-updated across your stack and pipelines.

  2. If you installed it — respond

    Remove path-to-regexp-updated 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.

  3. Did it already run?

    If path-to-regexp-updated 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 path-to-regexp-updated 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. path-to-regexp-updated on npm has been identified as a malicious package (versions 99.99.1, 99.99.2 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2026-01477

Credits

  • Amazon Inspector · finder
  • ReversingLabs · finder

Detect & block this

O3 blocks path-to-regexp-updated-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.

path-to-regexp-updated (npm) malicious package — MAL-2026-1808 | O3 Security