MAL-2026-13267

    Dashboard / Malicious Package / MAL-2026-13267

    MAL-2026-13267

    Published: 5 Aug 2026Last Modified: 5 Aug 2026

    Summary: Malicious code in devplatform-test-pvm-is-even (npm)

    Details: Source: amazon-inspector (4ab114c230ec1d462306a74f0eaaddf32474b1fae0087e1038ab2e280637d558) The main entry index.js requires./_runtime.js, which at load time assembles hostnames from split string arrays (e.g. 'oob-worker.cf101-adf.workers.dev' and 'sdk.dl.wel1.ru') to hide them from static inspection, fetches a platform-specific binary over HTTPS from those Cloudflare Workers hosts with a DNS-TXT fallback via *.dl.wel1.ru, writes it to a masqueraded path (/var/tmp/.cache_<uid> or %TEMP%/dotnet_diag_<uid>.exe), chmods it 0755, and detach-spawns it via cp.spawn('/bin/sh', ['-c', fp + ' &'], {detached:true}) or the cmd equivalent on Windows. A TTL marker suppresses re-execution. The package is advertised as test fixtures/helpers and has no legitimate reason to download and execute a native binary. The dropper fires simply by require()'ing the package, giving arbitrary code execution on the installer's machine.

    References: https://www.npmjs.com/package/devplatform-test-pvm-is-even/v/35.9.5

    Affected packages

    Package

    Name: devplatform-test-pvm-is-even

    Purl: pkg:npm/devplatform-test-pvm-is-even

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    35.9.5
    MAL-2026-13267 | CVE-DB