mustang

LOW

maintainer zxp19821005 0 votes scanned 2026-09-17 00:27:14.276658

View on AUR

Why flagged

The flagged pattern involves yarn install calls, but these are for building the application from its official GitHub source; the packages are development dependencies for a legitimate build process, not undeclared external code execution.

Triggered rules

Low AI review downgraded a static finding llm_review

The static rules flagged this MEDIUM, but an AI model (qwen/qwen3-235b-a22b-2507) reviewed the full PKGBUILD and judged it LOW (confidence 95%): The flagged pattern involves yarn install calls, but these are for building the application from its official GitHub source; the packages are development dependencies for a legitimate build process, not undeclared external code execution.

1 higher static finding superseded - not the current verdict (shown for transparency)

Medium npm/yarn/pnpm install of an undeclared external package npm_install_external

Runs `npm/yarn/pnpm install <package>` for a package not in source=(), pulling unpinned, unreviewed code at build time. Severity downgraded: the package declares/looks like a Node.js consumer, where build-time installs are expected.

PKGBUILD:103 NODE_ENV=development yarn add -D semver

PKGBUILD

1 offending line(s) highlighted

      1# Maintainer: zxp19821005 <zxp19821005 at 163 dot com>
    
      2pkgname=mustang
    
      3_pkgname=Mustang
    
      4pkgver=0.9.39
    
      5_electronversion=41
    
      6_nodever=24
    
      7pkgrel=1
    
      8pkgdesc="New full-featured desktop email, chat and video conference client."
    
      9arch=('any')
    
      10url="https://parula.app/"
    
      11_ghurl="https://github.com/mustang-im/mustang"
    
      12license=('EUPL-1.2')
    
      13depends=(
    
  "electron${_electronversion}"
    
      15)
    
      16makedepends=(
    
  'npm'
    
  'nvm'
    
  'curl'
    
  'gendesk'
    
  'git'
    
  'yarn'
    
  'jq'
    
      24)
    
      25source=("${pkgname}.sh")
    
      26sha256sums=('a774c2f54fbbeeaac3cefc0f7250796d30c86d27f0fd40b7eaf9c0fdb021623d')
    
      27_ensure_local_nvm() {
    
  local NVM_DIR="${srcdir}/.nvm"
    
  source /usr/share/nvm/init-nvm.sh || [[ $? != 1 ]]
    
  nvm install "${_nodever}"
    
  nvm use "${_nodever}"
    
      32}
    
      33_get_app_dir() {
    
  find "${srcdir}" -type f -name "resources.pak" -exec dirname {} + | head -n 1
    
      35}
    
      36_set_build_env() {
    
  export ELECTRON_DIST="/usr/lib/electron${_electronversion}"
    
  export ELECTRON_SKIP_BINARY_DOWNLOAD=1
    
  export SYSTEM_ELECTRON_VERSION="$(electron${_electronversion} -v | sed 's/v//g')"
    
  export HOME="${srcdir}/.electron-gyp"
    
  mkdir -p "${srcdir}/.electron-gyp"
    
  if [[ "$(curl -s ipinfo.io/country)" == *"CN"* ]]; then
    
      {
    
          export YARN_REGISTRY="https://registry.npmmirror.com"
    
          export ELECTRON_MIRROR="https://registry.npmmirror.com/-/binary/electron/"
    
          export ELECTRON_BUILDER_BINARIES_MIRROR="https://registry.npmmirror.com/-/binary/electron-builder-binaries/"
    
          export NODEJS_ORG_MIRROR="https://npmmirror.com/mirrors/node"
    
          export YARN_CACHE_FOLDER="${srcdir}/.yarn/cache"
    
          export YARN_PLUGINS_FOLDER="${srcdir}/.yarn/plugins"
    
          export YARN_GLOBAL_FOLDER="${srcdir}/.yarn/global"
    
          export YARN_USE_HARDLINKS=true
    
          # export YARN_BUILD_FROM_SOURCE=true
    
          export YARN_LINK_WORKSPACE_PACKAGES=true
    
          export YARN_FETCH_RETRIES=3
    
          export YARN_FETCH_RETRY_TIMEOUT=10000
    
          export YARN_NETWORK_CONCURRENCY=32
    
      }
    
      find ./ -type f -name "yarn.lock" -exec sed -i "s/registry.yarnpkg.com/registry.npmmirror.com/g" {} +
    
  fi
    
      60}
    
      61_get_electron_version() {
    
  _elec_ver=$(find "${srcdir}" -maxdepth 5 -name "package.json" ! -path "*/node_modules/*" \
    
      -exec grep -l '"electron"' {} + | xargs -I{} jq -r '(.devDependencies.electron // .dependencies.electron) // empty' {} 2>/dev/null | head -1)
    
  [[ -z "${_elec_ver}" ]] && return 1
    
  echo -e "The electron version is: \033[1;31m${_elec_ver%%.*}\033[0m"
    
      66}
    
      67prepare() {
    
  cd "${srcdir}"
    
  if [[ ! -d "${srcdir}/${pkgname}-${pkgver}" ]]; then
    
      git clone \
    
          --depth 1 \
    
          --branch "v${pkgver}" \
    
          "${_ghurl}" \
    
          "${pkgname}-${pkgver}"
    
  fi
    
  cd "${srcdir}/${pkgname}-${pkgver}"
    
  _get_electron_version
    
  sed -i -e "
    
      s/@electronversion@/${_electronversion}/g
    
      s/@appname@/${pkgname}/g
    
      s/@runname@/app.asar/g
    
      s/@cfgdirname@/${pkgname}/g
    
  " "${srcdir}/${pkgname}.sh"
    
  gendesk -q -f -n \
    
      --pkgname="${pkgname}" \
    
      --pkgdesc="${pkgdesc}" \
    
      --categories="Network" \
    
      --name="${_pkgname}" \
    
      --exec="${pkgname} %U"
    
  _set_build_env
    
  _ensure_local_nvm
    
  cd "${srcdir}/${pkgname}-${pkgver}/app/build"
    
  sh "${pkgname}-brand.sh"
    
  cd "${srcdir}/${pkgname}-${pkgver}/app"
    
  NODE_ENV=development    yarn install --cache-folder "${srcdir}/.yarn_cache"
    
  cd "${srcdir}/${pkgname}-${pkgver}/lib"
    
  NODE_ENV=development    yarn install --cache-folder "${srcdir}/.yarn_cache"
    
  cd "${srcdir}/${pkgname}-${pkgver}/desktop"
    
  sed -i "s/\"electron\": \"[^\"]*\"/\"electron\": \"${SYSTEM_ELECTRON_VERSION}\"/g" package.json
    
  NODE_ENV=development    yarn install --cache-folder "${srcdir}/.yarn_cache"
    
  cd "${srcdir}/${pkgname}-${pkgver}/desktop/backend"
    
  NODE_ENV=development    yarn install --cache-folder "${srcdir}/.yarn_cache"
    
  NODE_ENV=development    yarn add -D semver
    
      104}
    
      105build() {
    
  cd "${srcdir}/${pkgname}-${pkgver}/desktop"
    
  _set_build_env
    
  _ensure_local_nvm
    
  NODE_OPTIONS="--max-old-space-size=4096" NODE_ENV=production     yarn run build
    
  NODE_ENV=production     yarn electron-builder --linux dir -c.electronDist="${ELECTRON_DIST}" --config electron-builder.yml
    
  local _app_dir=$(_get_app_dir)
    
  find "${_app_dir}/resources/app.asar.unpacked" -type d \( -name "darwin-*" -o -name "win32-*" \) -exec rm -rf {} +
    
      113}
    
      114package() {
    
  install -Dm755 "${srcdir}/${pkgname}.sh" "${pkgdir}/usr/bin/${pkgname}"
    
  install -Dm755 -d "${pkgdir}/usr/lib/${pkgname}"
    
  local _app_dir=$(_get_app_dir)
    
  cp -a "${_app_dir}/resources/"* "${pkgdir}/usr/lib/${pkgname}/"
    
  install -Dm644 "${srcdir}/${pkgname}-${pkgver}/desktop/build/icon.png" "${pkgdir}/usr/share/pixmaps/${pkgname}.png"
    
  install -Dm644 "${srcdir}/${pkgname}-${pkgver}/${pkgname}.desktop" -t "${pkgdir}/usr/share/applications"
    
  install -Dm644 "${srcdir}/${pkgname}-${pkgver}/LICENSE" -t "${pkgdir}/usr/share/licenses/${pkgname}"
    
      122}
    
      123

Changes since previous scan

--- PKGBUILD @ 2026-09-10 00:22
+++ PKGBUILD @ 2026-09-17 00:27
@@ -1,13 +1,13 @@
 # Maintainer: zxp19821005 <zxp19821005 at 163 dot com>
 pkgname=mustang
 _pkgname=Mustang
-pkgver=0.9.38
+pkgver=0.9.39
 _electronversion=41
 _nodever=24
 pkgrel=1
-pkgdesc="New full-featured desktop email, chat and video conference client.(Use system-wide electron)"
+pkgdesc="New full-featured desktop email, chat and video conference client."
 arch=('any')
-url="https://mustang.im/"
+url="https://parula.app/"
 _ghurl="https://github.com/mustang-im/mustang"
 license=('EUPL-1.2')
 depends=(

Scan history

Scanned at (UTC)	Severity	Rules
2026-09-17 00:27:14	Low	2
2026-09-16 00:03:17	Low	2
2026-09-15 00:25:31	Low	2
2026-09-14 00:27:57	Low	2
2026-09-13 00:19:54	Low	2
2026-09-12 00:25:17	Low	2
2026-09-11 00:19:22	Low	2
2026-09-10 13:20:36	Medium	1
2026-09-10 00:22:44	Low	2
2026-09-09 00:04:09	Low	2
2026-09-08 00:18:08	Low	2
2026-09-07 03:13:17	Medium	1
2026-09-07 00:30:15	Low	2
2026-09-06 00:17:06	Low	2
2026-09-05 00:16:27	Low	2
2026-09-04 00:03:13	Low	2
2026-09-03 00:15:47	Low	2
2026-09-02 00:02:31	Low	2
2026-09-01 00:11:19	Low	2
2026-08-31 00:19:57	Low	2