runtime-sentinel (npm) · Malicious Code
Affects runtime-sentinelSource GCVE Database
Malicious package : remove runtime-sentinel and rotate any secrets on hosts that installed it.
Data as of 5 Aug 2026, 17:02 UTC
Malicious package
Published to npm · OSV MAL-2026-12432
What to do
Remove runtime-sentinel 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 |
|---|---|---|
| npmruntime-sentinel | Affected
| Fixed in– |
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Description
The npm package 'runtime-sentinel' versions 1.0.1 and 1.0.2 contains malicious code in its postinstall script. This script disables TLS certificate verification and fetches remote code from an untrusted source, then executes it with full Node.js require privileges during installation. The package masquerades as a runtime monitoring toolkit but executes attacker-controlled code, posing a significant security risk.