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

May 29, 2026

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

References

github.com/advisories/GHSA-g3hp-f6mg-559v
github.com/sparkle-project/Sparkle/security/advisories/GHSA-g3hp-f6mg-559v
nvd.nist.gov/vuln/detail/CVE-2026-47122

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