monochrome

maintainer huldaschurch · 0 votes · scanned 2026-08-03 00:08:14.047287

MEDIUM

Why flagged A prebuilt binary (Electron/native app bundle) is downloaded from downloads.samidy.com, a third-party host unrelated to the official GitHub repository, and installed directly to /opt and executed via a wrapper script. The checksum is SKIP'd, meaning there is zero integrity verification. If samidy.com is compromised, serves a different binary, or the maintainer of that host acts maliciously, users will silently execute arbitrary code. This is a textbook supply-chain risk: executed binary from an unofficial/personal host with no checksum. The GitHub URL is only used for pkgver() and the icon, not for the actual application binary. Medium severity is correct.

Triggered rules

MEDIUM source=() URL on a non-standard host source_untrusted_domain

One or more source=() URLs point to a host outside the trusted allowlist (github.com, gitlab.com, codeberg.org, pypi.org, …).

PKGBUILD:15 "$pkgname-$pkgver.zip::https://downloads.samidy.com/out_delivery/monochrome-linux.zip"

MEDIUM AI review llm_review

An AI model (anthropic/claude-4.6-sonnet-20260217) reviewed this and agrees it is MEDIUM (confidence 85%): A prebuilt binary (Electron/native app bundle) is downloaded from downloads.samidy.com, a third-party host unrelated to the official GitHub repository, and installed directly to /opt and executed via a wrapper script. The checksum is SKIP'd, meaning there is zero integrity verification. If samidy.com is compromised, serves a different binary, or the maintainer of that host acts maliciously, users will silently execute arbitrary code. This is a textbook supply-chain risk: executed binary from an unofficial/personal host with no checksum. The GitHub URL is only used for pkgver() and the icon, not for the actual application binary. Medium severity is correct.

PKGBUILD

1 offending line(s) highlighted

      1# Maintainer: Mylloon <aur@mylloon.fr>
    
      2
    
      3# shellcheck disable=SC2034,SC2148,SC2154
    
      4
    
      5pkgname='monochrome'
    
      6pkgver=r0.f378552
    
      7pkgrel=1
    
      8pkgdesc="Lossless music streaming"
    
      9arch=('x86_64')
    
      10url=https://github.com/monochrome-music/monochrome
    
      11license=('HIPPOCRATIC LICENSE')
    
      12provides=("$pkgname")
    
      13conflicts=("$pkgname")
    
      14source_x86_64=(
    
      15  "$pkgname-$pkgver.zip::https://downloads.samidy.com/out_delivery/monochrome-linux.zip"
    
      16  "icon.png::https://raw.githubusercontent.com/monochrome-music/monochrome/refs/heads/main/public/assets/96.png"
    
      17)
    
      18sha256sums_x86_64=('SKIP' 'c9551cf8f13846e1d330d408dc1c39b9b9d98448f57d9c722bfddab5bd905084')
    
      19
    
      20pkgver() {
    
      21  printf "r0.%s" "$(git ls-remote https://github.com/monochrome-music/monochrome.git HEAD | cut -c1-7)"
    
      22}
    
      23
    
      24package() {
    
      25  # Install full app to /opt
    
      26  install -d "$pkgdir/opt/$pkgname"
    
      27  find "$srcdir"/* ! -type l -exec cp -r -t "$pkgdir/opt/$pkgname" {} +
    
      28
    
      29  # Wrapper script
    
      30  install -d "$pkgdir/usr/bin"
    
      31  cat <<EOF > "$pkgdir/usr/bin/$pkgname"
    
      32#!/bin/sh
    
      33cd /opt/$pkgname
    
      34./Monochrome
    
      35EOF
    
      36  chmod +x "$pkgdir/usr/bin/$pkgname"
    
      37
    
      38  # Desktop entry
    
      39  install -Dm644 "$srcdir/icon.png" "$pkgdir/usr/share/pixmaps/$pkgname.png"
    
      40  install -Dm644 /dev/stdin "$pkgdir/usr/share/applications/$pkgname.desktop" <<EOF
    
      41[Desktop Entry]
    
      42Type=Application
    
      43Name=Monochrome
    
      44GenericName=Music streaming player
    
      45Comment=Lossless music streaming
    
      46Icon=$pkgname.png
    
      47Exec=/usr/bin/$pkgname
    
      48Terminal=false
    
      49Categories=Audio;Music;Player;
    
      50EOF
    
      51}
    
      52

Scan history

Scanned at (UTC)	Severity	Rules
2026-08-03 00:08:14	MEDIUM	2
2026-08-02 00:16:08	MEDIUM	2
2026-08-01 00:11:18	MEDIUM	2
2026-07-31 00:14:10	MEDIUM	2
2026-07-30 00:17:23	MEDIUM	2
2026-07-29 00:25:53	MEDIUM	2
2026-07-28 00:07:28	MEDIUM	2
2026-07-27 00:24:32	MEDIUM	2
2026-07-26 00:07:32	MEDIUM	2
2026-07-25 00:13:44	MEDIUM	2
2026-07-24 00:02:28	MEDIUM	2
2026-07-23 00:14:47	MEDIUM	2
2026-07-22 00:29:32	MEDIUM	2
2026-07-21 00:24:15	MEDIUM	2
2026-07-20 00:19:49	MEDIUM	2
2026-07-19 00:17:08	MEDIUM	2
2026-07-18 00:14:48	MEDIUM	2
2026-07-17 00:06:16	MEDIUM	2
2026-07-16 00:05:41	MEDIUM	2
2026-07-15 00:09:25	MEDIUM	2