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      <title>CVE-2026-56835 — PraisonAI Slack app_mention bypasses configured user/channel authorization</title>
      <link>https://db.gcve.eu/vuln/cve-2026-56835</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; MervinPraison PraisonAI&lt;/p&gt;
&lt;p&gt;PraisonAI is a multi-agent teams system. From version 3.11.0 to before version 4.6.59, PraisonAI&amp;#39;s Slack bot applies its configured allowed_users, allowed_channels, and unknown-user pairing policy in the normal Slack message event handler, but not in the adjacent Slack app_mention event handler. A Slack workspace user who can mention the bot in a channel where the Slack app is present can trigger the configured PraisonAI agent even when: the sender is not in BotConfig.allowed_users; the channel is not in BotConfig.allowed_channels; unknown_user_policy=&amp;#34;deny&amp;#34; is configured; and the same event content is correctly dropped by the normal message handler. This issue has been patched in version 4.6.59.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; MervinPraison PraisonAI&lt;/p&gt;
&lt;p&gt;PraisonAI is a multi-agent teams system. From version 3.11.0 to before version 4.6.59, PraisonAI&amp;#39;s Slack bot applies its configured allowed_users, allowed_channels, and unknown-user pairing policy in the normal Slack message event handler, but not in the adjacent Slack app_mention event handler. A Slack workspace user who can mention the bot in a channel where the Slack app is present can trigger the configured PraisonAI agent even when: the sender is not in BotConfig.allowed_users; the channel is not in BotConfig.allowed_channels; unknown_user_policy=&amp;#34;deny&amp;#34; is configured; and the same event content is correctly dropped by the normal message handler. This issue has been patched in version 4.6.59.&lt;/p&gt;</content:encoded>
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