🛡️ MAL-2026-5445 — grateful-payments

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Malicious code in grateful-payments (npm)

Source: amazon-inspector

On npm install, the package's postinstall script (src/canary.js) performs a DNS lookup and HTTPS GET to the hardcoded host 96e03fa6c292469a-172-245-86-254.serveousercontent.com at path /c. serveousercontent.com is an anonymous reverse-tunnel service, so the destination is operator-controlled and not tied to a verifiable publisher. Every installer's machine emits an unconsented outbound network call at install time, revealing source IP, DNS resolver path, and install timing to the tunnel operator — a classic install-fleet beaconing pattern used to confirm compromise reach. The package's own metadata describes itself as a HackerOne research canary with an empty main module, but the install-time network behavior is identical to a real install-time beacon and runs on anyone who installs this version.

Affected software

MAL-2026-5445 is recorded against 1 package.

  • grateful-payments

Timeline and source

Published on 9 June 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

www.npmjs.com (Package)

Details

Severity Unknown
CVSS Score N/A
CVSS Vector N/A
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2026-06-09
Updated 2026-08-12
Modified 2026-06-09
Fix URL N/A

Affected Packages

Software From version Fixed in
grateful-payments — —

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