simple-probe-utils (npm) · Malicious Code
Affects simple-probe-utilsSource GCVE Database
Malicious package : remove simple-probe-utils and rotate any secrets on hosts that installed it.
Data as of 5 Aug 2026, 15:39 UTC
Malicious package
Published to npm · OSV MAL-2026-11147
What to do
Remove simple-probe-utils 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 |
|---|---|---|
| npmsimple-probe-utils | Affected
| Fixed in– |
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Description
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (0457a026ab28fbb641d11e4e9ac9d60d026fd77210972f72e6ac931b4b06c59c) On npm install, postinstall.js executes shell commands that query cloud instance metadata services (AWS IMDS at 169.254.169.254, plus Tencent, Aliyun, GCP, and Azure endpoints) and extracts the AWS IAM role's temporary security credentials. The captured IAM credentials, hostname, and username are appended as query parameters to an HTTP request to the hardcoded out-of-band host pzs5w7ntzhsnepwk564lyfdci3oucl0a.oastify.com (a Burp Collaborator-style domain). The package.json describes the module as a lightweight string formatting helper; the shipped code contains only the credential-harvesting postinstall, with no string-utility functionality present.