Mediumnpm1 affected version

-pem-misa

-pem-misa has 1 version on the npm registry flagged in 1 incident we track. Other versions of this package are not implicated - only the exact versions listed below were named by the source advisories.

Affected versions

Check what you actually have installed with npm ls -pem-misa.

-pem-misa@1.3.3

The incident that flagged it

Medium25 Jul 2026

GitHub Advisory npm CWE-506 backfill - 19 "John Wick 4" Spanish-SEO-spam autopublisher packages + `-pem-misa` tea.xyz farmer swept 2026-07-25 (all long-unpublished from npm)

On 2026-07-25 GitHub retired 20 npm CWE-506 malware advisories in a historical backfill batch - 19 SEO-spam autopublisher packages named after the 2023 movie "John Wick: Chapter 4" (all originally published 2023-03-23, unpublished 2023-03-27), plus -pem-misa@1.3.3 (published 2024-05-24, part of the Indonesian tea.xyz token-farming autopublisher wave). No credential-stealer or wallet-drain payload - these are token-farming and SEO-spam packages that have been off the public npm registry for 1-3 years.

Versions named here: 1.3.3

What to do if you installed one of these

Treat the machine as compromised rather than simply upgrading. Packages in these incidents typically execute at install time, so the payload has already run with whatever credentials were in the environment.

1.Rotate every credential that machine or CI job could reach - registry tokens, cloud keys, SSH keys, CI secrets - from a different machine.
2.Pin to a version not listed above, then reinstall from a clean lockfile.
3.Clear caches and private mirrors. Artifactory, Nexus, Verdaccio, and devpi routinely keep serving a tarball after the public registry has pulled it.
4.Read the incident write-up above - recommended actions differ per incident, and some have specific indicators of compromise worth grepping your logs for.

Check your whole project

-pem-misa is one of many packages in these incidents, and it is usually pulled in as a transitive dependency rather than one you installed directly. Paste your package-lock.json to check every dependency at once - it runs in your browser and nothing is uploaded.

Check my package-lock.json All flagged npm packages

Other packages in the same incident

If -pem-misa is in your tree, these are worth checking too - they were published by the same campaign.

See the full incident

Version data comes from the public advisories cited on each incident page. We list only versions those advisories name - we don't infer additional ones. Think this is wrong or incomplete? Tell us.