fastmail
The package downloads a prebuilt AppImage from a Fastmail CDN, which is an unverifiable executable; if the host were compromised or the download intercepted, a malicious binary could be executed, constituting a supply-chain risk despite the official source.
Triggered rules
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:16
source=("${_appimg}::https://dl.fastmailcdn.com/desktop/production/linux/x64/${_appimg}"
llm_review
An AI model (qwen/qwen3-235b-a22b-2507) reviewed this and agrees it is MEDIUM (confidence 95%): The package downloads a prebuilt AppImage from a Fastmail CDN, which is an unverifiable executable; if the host were compromised or the download intercepted, a malicious binary could be executed, constituting a supply-chain risk despite the official source.
PKGBUILD
1 offending line(s) highlighted# Maintainer: Serge <arch@phnx47.net>
# Auto Upgrade: https://github.com/phnx47/pkgbuilds
pkgname=fastmail
pkgver=1.7.0
pkgrel=1
pkgdesc='Email made better'
license=('custom:fastmail')
url='https://www.fastmail.com'
arch=('x86_64')
options=('!strip')
depends=('gtk3' 'nss' 'alsa-lib')
makedepends=('desktop-file-utils')
_appimg="com.fastmail.Fastmail-${pkgver}.AppImage"
source=("${_appimg}::https://dl.fastmailcdn.com/desktop/production/linux/x64/${_appimg}"
"LICENSE.md") # https://www.fastmail.com/policies/terms-of-service/
sha512sums=('77644da6ad2274d715457890b386d239d2ebcbdbcf54e2809ce57179910163cba5b03ce24f50c4393433d05980f091a5ecc130b39adbdb4141317606270fa1b3'
'e336da034d45735cf62687e8b917e9d995a446685b1341d823ea032f9256751a92ecf5501c48ed4daf18a76df30a3a89b4a6f07aa4f6b2c2d34224c352435d89')
prepare() {
chmod +x "${_appimg}"
"./${_appimg}" --appimage-extract
cd squashfs-root
desktop-file-edit \
--set-key=Exec \
--set-value="${pkgname} %U" \
--set-key=Name \
--set-value="Fastmail" \
--remove-key=X-AppImage-Version \
${pkgname}.desktop
rm "AppRun" "resources/app-update.yml"
}
package() {
install -d "${pkgdir}/opt/${pkgname}"
cp -a "squashfs-root/." "${pkgdir}/opt/${pkgname}/"
install -d "${pkgdir}/usr/bin"
ln -s "/opt/${pkgname}/${pkgname}" "${pkgdir}/usr/bin/${pkgname}"
install -d "${pkgdir}/usr/share/applications"
ln -s "/opt/${pkgname}/${pkgname}.desktop" "${pkgdir}/usr/share/applications/${pkgname}.desktop"
for i in 16 24 32 48 64 128 256 512 1024; do
install -d "${pkgdir}/usr/share/icons/hicolor/${i}x${i}/apps"
ln -s "/opt/${pkgname}/usr/share/icons/hicolor/${i}x${i}/apps/${pkgname}.png" "${pkgdir}/usr/share/icons/hicolor/${i}x${i}/apps/${pkgname}.png"
done
find "${pkgdir}" -type d -exec chmod 755 {} +
install -Dm 644 LICENSE.md "${pkgdir}/usr/share/licenses/${pkgname}/LICENSE.md"
}
Changes since previous scan
--- PKGBUILD @ 2026-08-31 00:19+++ PKGBUILD @ 2026-09-17 00:27@@ -3,7 +3,7 @@ # Auto Upgrade: https://github.com/phnx47/pkgbuilds pkgname=fastmail-pkgver=1.6.0+pkgver=1.7.0 pkgrel=1 pkgdesc='Email made better' license=('custom:fastmail')@@ -15,7 +15,7 @@ _appimg="com.fastmail.Fastmail-${pkgver}.AppImage" source=("${_appimg}::https://dl.fastmailcdn.com/desktop/production/linux/x64/${_appimg}" "LICENSE.md") # https://www.fastmail.com/policies/terms-of-service/-sha512sums=('8d392cc51a7d4a4d76d94dd54a2cbd4f1949d1e8b81a43acd499a43e01074c9304c6899dc9a76bdbf49d706bdf0cffe993ea3a49bc82b6f7ead030755b48017e'+sha512sums=('77644da6ad2274d715457890b386d239d2ebcbdbcf54e2809ce57179910163cba5b03ce24f50c4393433d05980f091a5ecc130b39adbdb4141317606270fa1b3' 'e336da034d45735cf62687e8b917e9d995a446685b1341d823ea032f9256751a92ecf5501c48ed4daf18a76df30a3a89b4a6f07aa4f6b2c2d34224c352435d89') prepare() {Scan history
| Scanned at (UTC) | Severity | Rules |
|---|---|---|
| 2026-09-17 00:27:14 | Medium | 2 |
| 2026-09-16 00:03:17 | Medium | 2 |
| 2026-09-15 00:25:31 | Medium | 2 |
| 2026-09-14 00:27:57 | Medium | 2 |
| 2026-09-13 00:19:54 | Medium | 2 |
| 2026-09-12 00:25:17 | Medium | 2 |
| 2026-09-11 00:19:22 | Medium | 2 |
| 2026-09-10 00:22:44 | Medium | 2 |
| 2026-09-09 00:04:09 | Medium | 2 |
| 2026-09-08 00:18:08 | Medium | 2 |
| 2026-09-07 00:30:15 | Medium | 2 |
| 2026-09-06 00:17:06 | Medium | 2 |
| 2026-09-05 00:16:27 | Medium | 2 |
| 2026-09-04 00:03:13 | Medium | 2 |
| 2026-09-03 00:15:47 | Medium | 2 |
| 2026-09-02 00:02:31 | Medium | 2 |
| 2026-09-01 00:11:19 | Medium | 2 |
| 2026-08-31 17:46:09 | Medium | 2 |
| 2026-08-31 00:19:57 | Low | 2 |
| 2026-08-30 00:04:14 | Low | 2 |