eslint-plugin-cli-microsoft365 (npm) · Malicious Code
Affects eslint-plugin-cli-microsoft365Source GCVE Database
Malicious package : remove eslint-plugin-cli-microsoft365 and rotate any secrets on hosts that installed it.
Data as of 29 Oct 2026, 23:03 UTC
Malicious package
Published to npm · OSV MAL-2025-48998
What to do
Remove eslint-plugin-cli-microsoft365 from every project, lockfile and image that pulls it in. Treat any host that installed it as compromised: rotate the credentials, tokens and keys it could read, from a clean machine.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| npmeslint-plugin-cli-microsoft365 | Affected
| Fixed in– |
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Description
The eslint-plugin-cli-microsoft365 npm package version 1.0.0 contains malicious code that installs a dependency from a custom domain which executes an information stealer during installation. This malware targets sensitive tokens related to npm, git, and CI/CD environments. Any system with this package installed should be considered fully compromised, and all secrets and keys stored on that system must be rotated immediately from a different, secure machine.