openssl: QUIC server may trigger double free when processing INITIAL packet

A flaw was found in OpenSSL. A malformed INITIAL packet with an invalid DCID destination connection ID can cause the QUIC server to double free the QRX object. This issue leads to memory corruption, causing the termination of the QUIC server process and resulting in a denial of service...

openssl: QUIC server may trigger double free when processing INITIAL packet

A flaw was found in OpenSSL. A malformed INITIAL packet with an invalid DCID destination connection ID can cause the QUIC server to double free the QRX object. This issue leads to memory corruption, causing the termination of the QUIC server process and resulting in a denial of service...

CVE-2026-18798

The OpenSSL QUIC stack's default packet handler (port_default_packet_handler() ) is vulnerable to a double free of a QRX object . When an INITIAL packet validates but fails during channel creation via port_bind_channel() , the object is freed by the function and then freed again by the handler's ...

PT-2026-81300

Name of the Vulnerable Software and Affected Versions OpenSSL versions prior to 3.5.3-8.1 Description A double free issue exists in the QUIC server when processing an INITIAL packet. The default packet handler port default packet handler creates a QRX QUIC record layer RX object for packet...