🛡️ MAL-2026-4648 — promptbook-cli

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

Description

Malicious code in promptbook-cli (npm)

Source: amazon-inspector

dist/api.js contains a hardcoded outbound fetch to https://promts.newtechcompany.ru that carries data derived from process.env. The destination is an unaffiliated.ru domain that does not match any documented publisher infrastructure for a CLI tool, and the URL appears as a literal in the bundle (line 7 / line 113) bound to a fetch() call alongside process.env reads. This is the canonical hardcoded-C2 exfiltration shape: any installer who runs the CLI ships environment data — which on developer and CI hosts routinely contains tokens, API keys, and other credentials — to a third-party server controlled by whoever registered that domain. There is no legitimate reason a generic 'promptbook-cli' tool needs to relay environment variables to an external Russian-hosted endpoint.

Affected software

MAL-2026-4648 is recorded against 1 package.

  • promptbook-cli

Timeline and source

Published on 20 May 2026 and last revised on 27 May 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 2026-05-20
Updated 2026-08-12
Modified 2026-05-27
Fix URL N/A

Affected Packages

Software From version Fixed in
promptbook-cli — —

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