chatpad-ai-bin

maintainer zxp19821005 · 0 votes · scanned 2026-08-03 00:08:14.047287

MEDIUM

Why flagged The PKGBUILD downloads a prebuilt AppImage from dl.todesktop.com, which is ToDesktop's official distribution CDN (a legitimate Electron app packaging/distribution service used by many commercial apps). The URL lacks a version path component, meaning the same URL could theoretically serve different content over time, though the sha256sum provides integrity verification. The AppImage is executed during the build (--appimage-extract) to unpack its contents, and the app.asar and native libraries are installed. While ToDesktop is a legitimate vendor, it is not a first-party GitHub release or a well-known package mirror — it's a third-party distribution service, and the URL structure (no version in path) is unusual. The sha256sum mitigates substitution risk for the current build, but the non-versioned URL means future pkgrel bumps could silently pull different content if the sum isn't updated. This is a genuine medium supply-chain concern: executed binary from a non-canonical host with a non-versioned URL, even if the current hash 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:21 "${pkgname%-bin}-${pkgver}.AppImage::https://dl.todesktop.com/230313oyppkw40a"

MEDIUM AI review llm_review

An AI model (anthropic/claude-4.6-sonnet-20260217) reviewed this and agrees it is MEDIUM (confidence 72%): The PKGBUILD downloads a prebuilt AppImage from dl.todesktop.com, which is ToDesktop's official distribution CDN (a legitimate Electron app packaging/distribution service used by many commercial apps). The URL lacks a version path component, meaning the same URL could theoretically serve different content over time, though the sha256sum provides integrity verification. The AppImage is executed during the build (--appimage-extract) to unpack its contents, and the app.asar and native libraries are installed. While ToDesktop is a legitimate vendor, it is not a first-party GitHub release or a well-known package mirror — it's a third-party distribution service, and the URL structure (no version in path) is unusual. The sha256sum mitigates substitution risk for the current build, but the non-versioned URL means future pkgrel bumps could silently pull different content if the sum isn't updated. This is a genuine medium supply-chain concern: executed binary from a non-canonical host with a non-versioned URL, even if the current hash is correct.

PKGBUILD

1 offending line(s) highlighted

      1# Maintainer: zxp19821005 <zxp19821005 at 163 dot com>
    
      2pkgname=chatpad-ai-bin
    
      3_pkgname=Chatpad-AI
    
      4pkgver=1.4.0
    
      5_electronversion=25
    
      6pkgrel=10
    
      7pkgdesc="Not just another ChatGPT user-interface!"
    
      8arch=("x86_64")
    
      9url="https://chatpad.ai/"
    
      10_ghurl="https://github.com/deiucanta/chatpad"
    
      11license=('AGPL-3.0-only')
    
      12provides=("${pkgname%-bin}=${pkgver}")
    
      13conflicts=("${pkgname%-bin}")
    
      14depends=(
    
      15    "electron${_electronversion}"
    
      16)
    
      17makedepends=(
    
      18    'fuse2'
    
      19)
    
      20source=(
    
      21    "${pkgname%-bin}-${pkgver}.AppImage::https://dl.todesktop.com/230313oyppkw40a"
    
      22    "${pkgname%-bin}.sh"
    
      23)
    
      24sha256sums=('05593b7575fe119cb08aa6049cb93d76dc2cfe0cc86fc0db2d22601f453d9c93'
    
      25            '291f50480f5a61bc9c68db7d44cd0412071128706baa868a9cb854f8779a1980')
    
      26pkgver() {
    
      27    cd "${srcdir}/squashfs-root"
    
      28    grep "X-AppImage-Version" "${_pkgname}.desktop" | sed "s/X-AppImage-Version=//g"
    
      29}
    
      30prepare() {
    
      31    sed -i -e "
    
      32        s/@electronversion@/${_electronversion}/g
    
      33        s/@appname@/${pkgname%-bin}/g
    
      34        s/@runname@/app.asar/g
    
      35        s/@cfgdirname@/${_pkgname//-/}/g
    
      36        s/@options@//g
    
      37    " "${srcdir}/${pkgname%-bin}.sh"
    
      38    chmod +x "${srcdir}/${pkgname%-bin}-${pkgver}.AppImage"
    
      39    "${srcdir}/${pkgname%-bin}-${pkgver}.AppImage" --appimage-extract > /dev/null
    
      40    sed -i -i "
    
      41        s/AppRun --no-sandbox/${pkgname%-bin}/g
    
      42        s/${_pkgname}/${pkgname%-bin}/g
    
      43    " "${srcdir}/squashfs-root/${_pkgname}.desktop"
    
      44}
    
      45package() {
    
      46    install -Dm755 "${srcdir}/${pkgname%-bin}.sh" "${pkgdir}/usr/bin/${pkgname%-bin}"
    
      47    install -Dm644 "${srcdir}/squashfs-root/resources/app.asar" -t "${pkgdir}/usr/lib/${pkgname%-bin}"
    
      48    install -Dm644 "${srcdir}/squashfs-root/usr/lib/"* -t "${pkgdir}/usr/lib/${pkgname%-bin}/lib"
    
      49    install -Dm644 "${srcdir}/squashfs-root/${_pkgname}.desktop" "${pkgdir}/usr/share/applications/${pkgname%-bin}.desktop"
    
      50    _icon_sizes=(16x16 32x32 48x48 64x64 128x128 256x256 512x512 1024x1024)
    
      51    for _icons in "${_icon_sizes[@]}";do
    
      52        install -Dm644 "${srcdir}/squashfs-root/usr/share/icons/hicolor/${_icons}/apps/${_pkgname}.png" \
    
      53            "${pkgdir}/usr/share/icons/hicolor/${_icons}/apps/${pkgname%-bin}.png"
    
      54    done
    
      55}

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