CVE-2026-74998

Range taken from the CVE record, check it before committing. make newentry in security/vuxml creates the vid.

  <vuln vid="FIXME (make newentry)">
    <topic>FIXME -- FIXME</topic>
    <affects>
      <package>
	<name>roundcube-classic-php82</name>
	<range><lt>1.6.18</lt></range>
      </package>
      <package>
	<name>roundcube-classic-php83</name>
	<range><lt>1.6.18</lt></range>
      </package>
      <package>
	<name>roundcube-classic-php84</name>
	<range><lt>1.6.18</lt></range>
      </package>
      <package>
	<name>roundcube-classic-php85</name>
	<range><lt>1.6.18</lt></range>
      </package>
      <package>
	<name>roundcube-classic-php86</name>
	<range><lt>1.6.18</lt></range>
      </package>
      <package>
	<name>roundcube-larry-php82</name>
	<range><lt>1.6.18</lt></range>
      </package>
      <package>
	<name>roundcube-larry-php83</name>
	<range><lt>1.6.18</lt></range>
      </package>
      <package>
	<name>roundcube-larry-php84</name>
	<range><lt>1.6.18</lt></range>
      </package>
      <package>
	<name>roundcube-larry-php85</name>
	<range><lt>1.6.18</lt></range>
      </package>
      <package>
	<name>roundcube-larry-php86</name>
	<range><lt>1.6.18</lt></range>
      </package>
    </affects>
    <description>
      <body xmlns="http://www.w3.org/1999/xhtml">
	<p>In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, responses
	from the CSS (Cascading Style Sheets) proxy were not validated, which
	may result in information disclosure or XSS (cross-site scripting) via
	MIME sniffing.</p>
      </body>
    </description>
    <references>
      <cvename>CVE-2026-74998</cvename>
      <url>https://nvd.nist.gov/vuln/detail/CVE-2026-74998</url>
    </references>
    <dates>
      <discovery>2026-08-17</discovery>
      <entry>2026-10-25</entry>
    </dates>
  </vuln>