arc-bin

MEDIUM

maintainer scottapotamas 0 votes scanned 2026-11-01 00:21:48.120785

View on AUR

Why flagged

This PKGBUILD downloads and installs a prebuilt binary ('arc') from registry.eui.io, which is the Electric UI project's own package registry (matching the maintainer's email domain @electricui.com and the official URL electricui.com). The host is not a well-known, independently audited distribution channel (like GitHub releases or an official distro mirror), but it does appear to be the vendor's own infrastructure. The binary is executed directly and installed to /usr/bin. The sha256 checksum provides integrity verification against tampering in transit, but does not protect against the upstream host serving a malicious binary. Since this is a prebuilt binary from a non-standard host (even if it is the vendor's own registry), it represents a genuine supply-chain concern: if registry.eui.io is compromised or the maintainer's control over it lapses, a malicious binary could be distributed. This is a textbook medium-severity case: not clearly malicious, but a real concern due to the executed binary from a non-mainstream host.

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:12 source=("$pkgname-$pkgver.tar.gz::https://registry.eui.io/arc/${pkgver}/arc_${pkgver}_linux_amd64.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%): This PKGBUILD downloads and installs a prebuilt binary ('arc') from registry.eui.io, which is the Electric UI project's own package registry (matching the maintainer's email domain @electricui.com and the official URL electricui.com). The host is not a well-known, independently audited distribution channel (like GitHub releases or an official distro mirror), but it does appear to be the vendor's own infrastructure. The binary is executed directly and installed to /usr/bin. The sha256 checksum provides integrity verification against tampering in transit, but does not protect against the upstream host serving a malicious binary. Since this is a prebuilt binary from a non-standard host (even if it is the vendor's own registry), it represents a genuine supply-chain concern: if registry.eui.io is compromised or the maintainer's control over it lapses, a malicious binary could be distributed. This is a textbook medium-severity case: not clearly malicious, but a real concern due to the executed binary from a non-mainstream host.

PKGBUILD

1 offending line(s) highlighted

      1# Maintainer: Scott Rapson <scott@electricui.com>
    
      2
    
      3pkgname="arc-bin"
    
      4pkgver=0.5.8
    
      5pkgrel=1
    
      6pkgdesc="CLI helper for Electric UI project creation, sandbox development and building releases."
    
      7arch=('x86_64')
    
      8url="https://electricui.com/"
    
      9license=('custom')
    
      10optdepends=('nodejs: Electric UI projects run on node')
    
      11provides=('arc')
    
      12source=("$pkgname-$pkgver.tar.gz::https://registry.eui.io/arc/${pkgver}/arc_${pkgver}_linux_amd64.tar.gz"
    
      13        "LICENSE"
    
      14)
    
      15sha256sums=('690a3018f4c77e367fd63bcebf3ffac324ca472c80553dde08714a287bf65517'
    
      16            '2eb92ca0796a09ccb80ccf5a55c5513bcbd840407da149edcb4a1073db8aa60e'
    
      17)
    
      18
    
      19package() {
    
      20	install -Dm755 "$srcdir"/arc -t "${pkgdir}/usr/bin"
    
      21	install -Dm644 LICENSE "${pkgdir}/usr/share/licenses/$pkgname/LICENSE"
    
      22}
    
      23

Scan history

Scanned at (UTC)	Severity	Rules
2026-11-01 00:21:48	Medium	2
2026-10-31 00:07:41	Medium	2
2026-10-30 00:29:30	Medium	2
2026-10-29 00:13:55	Medium	2
2026-10-28 00:06:54	Medium	2
2026-10-27 00:23:28	Medium	2
2026-10-26 00:12:40	Medium	2
2026-10-25 00:20:48	Medium	2
2026-10-24 00:14:55	Medium	2
2026-10-23 00:02:19	Medium	2
2026-10-22 00:13:10	Medium	2
2026-10-21 00:12:50	Medium	2
2026-10-20 00:10:31	Medium	2
2026-10-19 00:03:55	Medium	2
2026-10-18 00:06:55	Medium	2
2026-10-17 00:21:55	Medium	2
2026-10-16 00:12:47	Medium	2
2026-10-15 00:28:05	Medium	2
2026-10-14 00:06:47	Medium	2
2026-10-13 00:23:45	Medium	2