https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Wed, 30 Sep 2026 17:30:32 +0000 https://vulnerability.circl.lu/vuln/cve-2026-93711 <p><strong>Affected:</strong> Dancer2</p> <p>Dancer2 versions before 2.2.0 for Perl do not strip CR and LF from response header names in headers_to_array.</p> <p>The routine removes CR and LF from each header value but not from the name. A name carrying them therefore reaches the PSGI server intact. A server that does not validate keys writes it to the wire, so the bytes after the CRLF arrive as their own header line.</p> <p>The application has to derive the header name from request data, not just the value.</p> <p>An attacker who controls that data adds their own headers and splits the response.</p> <p><strong>Affected:</strong> Dancer2</p> <p>Dancer2 versions before 2.2.0 for Perl do not strip CR and LF from response header names in headers_to_array.</p> <p>The routine removes CR and LF from each header value but not from the name. A name carrying them therefore reaches the PSGI server intact. A server that does not validate keys writes it to the wire, so the bytes after the CRLF arrive as their own header line.</p> <p>The application has to derive the header name from request data, not just the value.</p> <p>An attacker who controls that data adds their own headers and splits the response.</p> https://vulnerability.circl.lu/vuln/cve-2026-93711