vk-calls-bin

One or more source=() URLs point to a host outside the trusted allowlist (github.com, gitlab.com, codeberg.org, pypi.org, …).

• PKGBUILD:15 source=("${pkgbasename}-${pkgver}-amd64.deb::https://vkcalls-native-ac.vk-apps.com/${pkgver}/${pkgbasename}-amd64.deb")

An AI model (anthropic/claude-4.6-sonnet-20260217) reviewed this and agrees it is MEDIUM (confidence 72%): The package downloads a prebuilt binary .deb from vkcalls-native-ac.vk-apps.com, which is a VK (VKontakte) subdomain used for distributing their native application. VK is a major Russian social network and vk-apps.com is their official app distribution domain, so this is not a random personal host — it is the vendor's own CDN/distribution endpoint. The sha256 checksum is pinned, providing integrity verification. However, the binary is a closed-source prebuilt executable from a non-standard packaging channel (not a distro mirror or well-known release page like GitHub releases), and the application itself is a proprietary VK product. The supply-chain concern is real but moderate: if vk-apps.com is compromised or the maintainer updates the URL without updating the checksum, a malicious binary could be installed. This is a standard 'bin' AUR package pattern with the usual risks of prebuilt proprietary binaries. The medium rating is appropriate — it is not a clear attack, but it is an executed binary from a vendor-controlled CDN that cannot be independently audited.