https://cve.radiocsirt.org Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Thu, 08 Oct 2026 18:50:56 +0000 https://cve.radiocsirt.org/vuln/cve-2026-43966 <p><strong>Affected:</strong> ninenines cowlib</p> <p>Improper Neutralization of CRLF Sequences in HTTP Headers (&#39;HTTP Request/Response Splitting&#39;) vulnerability in ninenines cowlib allows HTTP response splitting via non-VCHAR bytes in structured-fields string values.</p> <p>cow_http_struct_hd:escape_string/2 in cowlib only escapes \ and &#34;, passing all other bytes through verbatim. This creates an encoder/decoder asymmetry: the matching parser accepts only printable ASCII (0x20–0x7E, excluding &#34; and \), but the encoder emits any byte including CR and LF. An application that builds a structured HTTP header via cow_http_struct_hd:item/1 (or a higher-level wrapper such as cow_http_hd:wt_protocol/1) from attacker-controlled input can have \r\n injected into the serialized header value. Once on the wire, the injected CRLF terminates the current header and any following bytes are interpreted as a new header, enabling HTTP response splitting.</p> <p>This issue affects cowlib from 2.9.0.</p> <p><strong>Affected:</strong> ninenines cowlib</p> <p>Improper Neutralization of CRLF Sequences in HTTP Headers (&#39;HTTP Request/Response Splitting&#39;) vulnerability in ninenines cowlib allows HTTP response splitting via non-VCHAR bytes in structured-fields string values.</p> <p>cow_http_struct_hd:escape_string/2 in cowlib only escapes \ and &#34;, passing all other bytes through verbatim. This creates an encoder/decoder asymmetry: the matching parser accepts only printable ASCII (0x20–0x7E, excluding &#34; and \), but the encoder emits any byte including CR and LF. An application that builds a structured HTTP header via cow_http_struct_hd:item/1 (or a higher-level wrapper such as cow_http_hd:wt_protocol/1) from attacker-controlled input can have \r\n injected into the serialized header value. Once on the wire, the injected CRLF terminates the current header and any following bytes are interpreted as a new header, enabling HTTP response splitting.</p> <p>This issue affects cowlib from 2.9.0.</p> https://cve.radiocsirt.org/vuln/cve-2026-43966