jack-editor

maintainer seeseemelk · 1 votes · scanned 2026-08-03 00:08:14.047287

MEDIUM

Why flagged The PKGBUILD downloads a prebuilt binary installer script (jackhammer.run) from jack.hlfx.ru, which is the vendor's own domain for the J.A.C.K. level editor (SteamPipe/Jackhammer project by Aleksander Shatalov). The domain is not a major CDN or well-known mirror, but it is the actual upstream project host. However, the binary is executed directly (chmod +x; ./jackhammer.run --noexec --keep) without any verification beyond a sha256sum, and the host is a personal/small-vendor domain that could be compromised or silently updated. The sha256sum provides integrity checking against the pinned hash, which mitigates the worst supply-chain risk, but the source is still a prebuilt opaque binary from a non-authoritative third-party host. This is a genuine medium-severity concern: an executed binary from an unofficial/personal host, not clearly malicious but representing a real supply-chain risk if the host or binary is ever compromised.

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:10 source=("jackhammer.run::http://jack.hlfx.ru/en/download_jackhammer_linux64.html")

MEDIUM AI review llm_review

An AI model (anthropic/claude-4.6-sonnet-20260217) reviewed this and agrees it is MEDIUM (confidence 82%): The PKGBUILD downloads a prebuilt binary installer script (jackhammer.run) from jack.hlfx.ru, which is the vendor's own domain for the J.A.C.K. level editor (SteamPipe/Jackhammer project by Aleksander Shatalov). The domain is not a major CDN or well-known mirror, but it is the actual upstream project host. However, the binary is executed directly (chmod +x; ./jackhammer.run --noexec --keep) without any verification beyond a sha256sum, and the host is a personal/small-vendor domain that could be compromised or silently updated. The sha256sum provides integrity checking against the pinned hash, which mitigates the worst supply-chain risk, but the source is still a prebuilt opaque binary from a non-authoritative third-party host. This is a genuine medium-severity concern: an executed binary from an unofficial/personal host, not clearly malicious but representing a real supply-chain risk if the host or binary is ever compromised.

PKGBUILD

1 offending line(s) highlighted

      1# Maintainer: Sebastiaan de Schaetzen <sebastiaan.de.schaetzen@gmail.com>
    
      2pkgname=jack-editor
    
      3pkgver=1.1.1064
    
      4pkgrel=2
    
      5pkgdesc="J.A.C.K. is a brand new level editor for games with a quake-style BSP architecture."
    
      6arch=("x86_64")
    
      7url=""
    
      8license=('GPL')
    
      9depends=(nas libpng12)
    
      10source=("jackhammer.run::http://jack.hlfx.ru/en/download_jackhammer_linux64.html")
    
      11sha256sums=("f2d02affd843a0d3191b45096435d7bcd7b2cf0d9d55ff3bc6094b732f41a4fa")
    
      12
    
      13build() {
    
      14	chmod +x jackhammer.run
    
      15	./jackhammer.run --noexec --keep
    
      16}
    
      17
    
      18package() {
    
      19	mv -f linux_x64 jack
    
      20	rm -f jack/install.sh
    
      21	mv -f jack/Jack.desktop .
    
      22	find jack -type d -exec chmod +x {} \;
    
      23	find jack -type f -exec chmod +r {} \;
    
      24	mkdir -p -m755 ${pkgdir}/opt/jack
    
      25	mkdir -p -m755 ${pkgdir}/usr/bin
    
      26	cp -rv jack ${pkgdir}/opt
    
      27	install -D -m644 Jack.desktop ${pkgdir}/usr/share/applications/Jack.desktop
    
      28	ln -s /opt/jack/Jack.sh ${pkgdir}/usr/bin/Jack 
    
      29}
    
      30

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