numi-bin

maintainer grady.link · 0 votes · scanned 2026-08-03 00:08:14.047287

MEDIUM

Why flagged The PKGBUILD downloads a prebuilt AppImage binary from s3.numi.app (an S3 bucket under the official project domain) and executes it to extract contents. Two concerns: (1) sha256sums is set to 'SKIP', meaning there is no integrity verification whatsoever — the binary could be silently replaced on the S3 bucket without any detection; (2) the source is a prebuilt binary blob (AppImage) rather than source code, from a cloud storage host rather than a versioned release on a well-audited platform like GitHub releases. While s3.numi.app appears to be the official distribution channel for the numi project, the lack of any checksum combined with executing an unverified binary constitutes a genuine supply-chain risk. This is a real medium-severity concern, not a false positive.

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:9 source=("https://s3.numi.app/desktop/v${pkgver}/numi-v${pkgver}-x86_64-unknown-linux-gnu.tar.gz")

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 s3.numi.app (an S3 bucket under the official project domain) and executes it to extract contents. Two concerns: (1) sha256sums is set to 'SKIP', meaning there is no integrity verification whatsoever — the binary could be silently replaced on the S3 bucket without any detection; (2) the source is a prebuilt binary blob (AppImage) rather than source code, from a cloud storage host rather than a versioned release on a well-audited platform like GitHub releases. While s3.numi.app appears to be the official distribution channel for the numi project, the lack of any checksum combined with executing an unverified binary constitutes a genuine supply-chain risk. This is a real medium-severity concern, not a false positive.

PKGBUILD

1 offending line(s) highlighted

      1# Maintainer: CrossScar <crossscar@proton.me>
    
      2pkgname=numi-bin
    
      3pkgver=0.4.0
    
      4pkgrel=2
    
      5pkgdesc="Beautiful calculator app for macOS, Linux, and Windows"
    
      6arch=('x86_64')
    
      7url="https://numi.app"
    
      8license=('MIT')
    
      9source=("https://s3.numi.app/desktop/v${pkgver}/numi-v${pkgver}-x86_64-unknown-linux-gnu.tar.gz")
    
      10sha256sums=('SKIP')
    
      11
    
      12prepare() {
    
      13  ./numi_${pkgver}_amd64.AppImage --appimage-extract
    
      14}
    
      15
    
      16package() {
    
      17  mkdir -p ${pkgdir}/usr/bin
    
      18  mkdir -p ${pkgdir}/usr/share/applications
    
      19  mkdir -p ${pkgdir}/usr/share/icons/hicolor/128x128/apps
    
      20  mkdir -p ${pkgdir}/usr/share/icons/hicolor/256x256@2/apps
    
      21  mkdir -p ${pkgdir}/usr/share/icons/hicolor/32x32/apps
    
      22
    
      23  cp squashfs-root/usr/bin/numi ${pkgdir}/usr/bin/numi
    
      24  cp squashfs-root/usr/share/applications/numi.desktop ${pkgdir}/usr/share/applications/numi.desktop
    
      25  cp squashfs-root/usr/share/icons/hicolor/128x128/apps/numi.png ${pkgdir}/usr/share/icons/hicolor/128x128/apps/numi.png
    
      26  cp squashfs-root/usr/share/icons/hicolor/256x256@2/apps/numi.png ${pkgdir}/usr/share/icons/hicolor/256x256@2/apps/numi.png
    
      27  cp squashfs-root/usr/share/icons/hicolor/32x32/apps/numi.png ${pkgdir}/usr/share/icons/hicolor/32x32/apps/numi.png
    
      28}
    
      29

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