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      <title>CVE-2026-25740 — Privilege escalation to the `CAP_NET_RAW` capability via the `programs.captive-browser` NixOS module</title>
      <link>https://cve.radiocsirt.org/vuln/cve-2026-25740</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; NixOS nixpkgs&lt;/p&gt;
&lt;p&gt;captive browser, a dedicated Chrome instance to log into captive portals without messing with DNS settings. In 25.05 and earlier, when programs.captive-browser is enabled, any user of the system can run arbitrary commands with the CAP_NET_RAW capability (binding to privileged ports, spoofing localhost traffic from privileged services...). This vulnerability is fixed in 25.11 and 26.05.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; NixOS nixpkgs&lt;/p&gt;
&lt;p&gt;captive browser, a dedicated Chrome instance to log into captive portals without messing with DNS settings. In 25.05 and earlier, when programs.captive-browser is enabled, any user of the system can run arbitrary commands with the CAP_NET_RAW capability (binding to privileged ports, spoofing localhost traffic from privileged services...). This vulnerability is fixed in 25.11 and 26.05.&lt;/p&gt;</content:encoded>
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