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    <lastBuildDate>Wed, 07 Oct 2026 15:55:41 +0000</lastBuildDate>
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      <title>CVE-2026-45687 — Rocket.Chat: Authenticated Arbitrary Data Export Theft via Mass Assignment in sendFileMessage</title>
      <link>https://cve.radiocsirt.org/vuln/cve-2026-45687</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; RocketChat Rocket.Chat&lt;/p&gt;
&lt;p&gt;Rocket.Chat is an open-source, secure, fully customizable communications platform. Prior to 8.5.0, 8.4.1, 8.3.3, 8.2.3, 8.1.4, 8.0.5, 7.13.7, and 7.10.11, Rocket.Chat&amp;#39;s sendFileMessage DDP method passes the entire attacker-supplied file object into Uploads.updateFileComplete, which merges it directly into a MongoDB $set update via Object.assign. There is no allow-list of writable fields. An attacker can therefore rewrite any column on their own upload record, notably store and the store-specific path fields. This vulnerability is fixed in 8.5.0, 8.4.1, 8.3.3, 8.2.3, 8.1.4, 8.0.5, 7.13.7, and 7.10.11.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; RocketChat Rocket.Chat&lt;/p&gt;
&lt;p&gt;Rocket.Chat is an open-source, secure, fully customizable communications platform. Prior to 8.5.0, 8.4.1, 8.3.3, 8.2.3, 8.1.4, 8.0.5, 7.13.7, and 7.10.11, Rocket.Chat&amp;#39;s sendFileMessage DDP method passes the entire attacker-supplied file object into Uploads.updateFileComplete, which merges it directly into a MongoDB $set update via Object.assign. There is no allow-list of writable fields. An attacker can therefore rewrite any column on their own upload record, notably store and the store-specific path fields. This vulnerability is fixed in 8.5.0, 8.4.1, 8.3.3, 8.2.3, 8.1.4, 8.0.5, 7.13.7, and 7.10.11.&lt;/p&gt;</content:encoded>
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