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      <title>CVE-2026-47122 — Sparkle's AppInstaller post-stage-1 XPC listener accepts unvalidated connections, allowing spoofed appcast item data in…</title>
      <link>https://cve.radiocsirt.org/vuln/cve-2026-47122</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; sparkle-project Sparkle&lt;/p&gt;
&lt;p&gt;Sparkle is a software update framework for macOS. In versions up to and including 2.9.1, `Autoupdate/AppInstaller.m`&amp;#39;s `shouldAcceptNewConnection:` only enforces `SUCodeSigningVerifier validateConnection:` before stage 1 completes. After `_performedStage1Installation = YES`, new connections to the registered Mach service `&amp;lt;bundleId&amp;gt;-spki` are accepted from any local process without team-ID or code-signing checks. As of time of publication, no known patched versions are available.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; sparkle-project Sparkle&lt;/p&gt;
&lt;p&gt;Sparkle is a software update framework for macOS. In versions up to and including 2.9.1, `Autoupdate/AppInstaller.m`&amp;#39;s `shouldAcceptNewConnection:` only enforces `SUCodeSigningVerifier validateConnection:` before stage 1 completes. After `_performedStage1Installation = YES`, new connections to the registered Mach service `&amp;lt;bundleId&amp;gt;-spki` are accepted from any local process without team-ID or code-signing checks. As of time of publication, no known patched versions are available.&lt;/p&gt;</content:encoded>
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