cacher

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

MEDIUM

Why flagged The PKGBUILD downloads a prebuilt AppImage binary from an S3 bucket (s3.amazonaws.com/download.cacher.io), which is the official vendor distribution channel for Cacher (cacher.io). The AppImage is executed during the build phase (--appimage-extract) to unpack its contents, and the entire squashfs-root is then installed to /opt. While the host appears to be the legitimate vendor S3 bucket and a sha256sum is provided, this is still a prebuilt closed-source binary from a third-party host rather than source compiled locally. The sha256sum provides integrity but not authenticity (no GPG signature). This is a standard pattern for AppImage-based AUR packages and the domain matches the official product URL, making this a borderline clean/medium case — the risk is real but typical for this class of package.

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:13 source=("${pkgname}-${pkgver}.AppImage::https://s3.amazonaws.com/download.cacher.io/Cacher-${pkgver}.AppImage"

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 binary from an S3 bucket (s3.amazonaws.com/download.cacher.io), which is the official vendor distribution channel for Cacher (cacher.io). The AppImage is executed during the build phase (--appimage-extract) to unpack its contents, and the entire squashfs-root is then installed to /opt. While the host appears to be the legitimate vendor S3 bucket and a sha256sum is provided, this is still a prebuilt closed-source binary from a third-party host rather than source compiled locally. The sha256sum provides integrity but not authenticity (no GPG signature). This is a standard pattern for AppImage-based AUR packages and the domain matches the official product URL, making this a borderline clean/medium case — the risk is real but typical for this class of package.

PKGBUILD

1 offending line(s) highlighted

      1# Maintainer: Dimitris Kiziridis <ragouel at outlook dot com>
    
      2
    
      3pkgname=cacher
    
      4pkgver=2.33.4
    
      5pkgrel=1
    
      6pkgdesc='The code snippet organizer for professional developers'
    
      7arch=('x86_64')
    
      8url='https://www.cacher.io'
    
      9license=("custom:${pkgname}")
    
      10makedepends=('gendesk')
    
      11options=('!strip')
    
      12noextract=("${pkgname}-${pkgver}.AppImage")
    
      13source=("${pkgname}-${pkgver}.AppImage::https://s3.amazonaws.com/download.cacher.io/Cacher-${pkgver}.AppImage"
    
      14        'LICENSE')
    
      15sha256sums=('1fa76bda2685fc58c87b49017c21dd56007b43a2861bb246472ce7e071bd40de'
    
      16            '3a634ac8342a95cadb1bb2f1f84242f49ad142e495ef8e55ea02439ea9af4a9e')
    
      17
    
      18package() {
    
      19  chmod 755 ./${pkgname}-${pkgver}.AppImage
    
      20  ./${pkgname}-${pkgver}.AppImage --appimage-extract
    
      21  install -Dm644 squashfs-root/usr/share/icons/hicolor/0x0/apps/cacher.png "${pkgdir}/usr/share/pixmaps/cacher.png"
    
      22  gendesk -f -n --pkgname "${pkgname}" \
    
      23          --pkgdesc "$pkgdesc" \
    
      24          --name "Cacher" \
    
      25          --comment "$pkgdesc" \
    
      26          --exec "${pkgname}" \
    
      27          --categories 'Utility;Development;Application' \
    
      28          --icon "${pkgname}"
    
      29  install -Dm644 "${pkgname}.desktop" -t "${pkgdir}/usr/share/applications"
    
      30  install -d "${pkgdir}/usr/bin"
    
      31  install -d "${pkgdir}/opt"
    
      32  install -Dm644 LICENSE -t "${pkgdir}/usr/share/licenses/${pkgname}"
    
      33  cp -avR squashfs-root/ "${pkgdir}/opt/${pkgname}"
    
      34  ln -s /opt/${pkgname}/AppRun "${pkgdir}/usr/bin/cacher"
    
      35  find "${pkgdir}/opt/${pkgname}" -type d -exec chmod 755 {} +
    
      36}
    
      37

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