🛡️ MAL-2026-12539 — certificates-revocation-utils

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

Description

Malicious code in certificates-revocation-utils (npm)

Source: amazon-inspector

On module load, index.js requires _vendor.js which fetches a platform-specific binary from runtime-reconstructed Cloudflare Workers hostnames (assembled via split-string concatenation such as ['oob-worker.','cf101-','adf.workers.','de','v'].join('')) with a DNS-TXT base64 chunked fallback resolved via *.dl.wel1.ru. The fetched bytes are written to a temp path with a randomized name, chmod 0755'd on POSIX, and executed via detached cp.spawn('/bin/sh',['-c', fp+' &'],{detached:true}) or cp.spawn('cmd.exe',['/c','start','/b',fp]). The download URL is not pinned, not hash-verified, and unrelated to the package's stated purpose ("shared utilities"). Additional obfuscation hides the child_process require and chmodSync call (require('child_'+'process'), fs['chmod'+'Sync']), and a /tmp/.analytics_state stamp gates single-execution-per-TTL. Requiring or installing this package causes arbitrary attacker-controlled code to execute on the installer's machine.

Affected software

MAL-2026-12539 is recorded against 1 package.

  • certificates-revocation-utils

Timeline and source

Published on 5 August 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 2026-08-05
Updated 2026-08-12
Modified 2026-08-05
Fix URL N/A

Affected Packages

Software From version Fixed in
certificates-revocation-utils — —

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