CVE-2026-21438: Missing Release of Memory after Effective Lifetime

webtransport-go is an implementation of the WebTransport protocol. Prior to 0.10.0, an attacker can cause unbounded memory consumption repeatedly creating and closing many WebTransport streams. Closed streams were not removed from an internal session map, preventing garbage collection of their...

CVE-2026-21435: Uncontrolled Resource Consumption

webtransport-go is an implementation of the WebTransport protocol. Prior to v0.10.0, an attacker can cause a denial of service in webtransport-go by preventing or indefinitely delaying WebTransport session closure. A malicious peer can withhold QUIC flow control credit on the CONNECT stream,...

CVE-2026-21434: Allocation of Resources Without Limits or Throttling

webtransport-go is an implementation of the WebTransport protocol. From 0.3.0 to 0.9.0, an attacker can cause excessive memory consumption in webtransport-go's session implementation by sending a WTCLOSESESSION capsule containing an excessively large Application Error Message. The implementation...

webtransport-go 资源管理错误漏洞

webtransport-go is an open-source Go language library developed by quic-go. Versions of webtransport-go prior to 0.10.0 contained a resource management vulnerability. This vulnerability could be exploited by malicious peers that might prevent or indefinitely delay the termination of sessions,...

webtransport-go 安全漏洞

webtransport-go is an open-source Go language library developed by quic-go. Versions of webtransport-go prior to 0.10.0 contained security vulnerabilities. These vulnerabilities stemmed from the failure to remove closed streams from the internal session mapping, which could lead to unlimited memo...