CVE-2026-47122

Sparkle CVE-2026-47122 affects Sparkle 2.x up to 2.9.1. After stage 1 installation, the AppInstaller’s Mach service (-spki) accepts connections from any local process without team-ID or code-signing checks, enabling a local attacker to inject a spoofed SPUSentUpdateAppcastItemData payload and cau...

CVE-2026-47122 Sparkle's AppInstaller post-stage-1 XPC listener accepts unvalidated connections, allowing spoofed appcast item data injection

Sparkle is a software update framework for macOS. In versions up to and including 2.9.1, Autoupdate/AppInstaller.m's shouldAcceptNewConnection: only enforces SUCodeSigningVerifier validateConnection: before stage 1 completes. After performedStage1Installation = YES, new connections to the...

GHSA-G3HP-F6MG-559V Sparkle's AppInstaller post-stage-1 XPC listener accepts unvalidated connections, allowing spoofed appcast item data injection

Summary AppInstaller post-stage-1 XPC listener accepts unvalidated connections, allowing spoofed appcast item data injection. Details Autoupdate/AppInstaller.m's shouldAcceptNewConnection: only enforces SUCodeSigningVerifier validateConnection: before stage 1 completes. After...

Sparkle's AppInstaller post-stage-1 XPC listener accepts unvalidated connections, allowing spoofed appcast item data injection

Summary AppInstaller post-stage-1 XPC listener accepts unvalidated connections, allowing spoofed appcast item data injection. Details Autoupdate/AppInstaller.m's shouldAcceptNewConnection: only enforces SUCodeSigningVerifier validateConnection: before stage 1 completes. After...

Sparkle's AppInstaller post-stage-1 XPC listener accepts unvalidated connections, allowing spoofed appcast item data injection

AppInstaller post-stage-1 XPC listener accepts unvalidated connections, allowing spoofed appcast item data injection...