https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Sun, 04 Oct 2026 18:30:34 +0000 https://vulnerability.circl.lu/vuln/cve-2021-21409 <p><strong>Affected:</strong> netty</p> <p>Netty is an open-source, asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers &amp; clients. In Netty (io.netty:netty-codec-http2) before version 4.1.61.Final there is a vulnerability that enables request smuggling. The content-length header is not correctly validated if the request only uses a single Http2HeaderFrame with the endStream set to to true. This could lead to request smuggling if the request is proxied to a remote peer and translated to HTTP/1.1. This is a followup of GHSA-wm47-8v5p-wjpj/CVE-2021-21295 which did miss to fix this one case. This was fixed as part of 4.1.61.Final.</p> <p><strong>Affected:</strong> netty</p> <p>Netty is an open-source, asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers &amp; clients. In Netty (io.netty:netty-codec-http2) before version 4.1.61.Final there is a vulnerability that enables request smuggling. The content-length header is not correctly validated if the request only uses a single Http2HeaderFrame with the endStream set to to true. This could lead to request smuggling if the request is proxied to a remote peer and translated to HTTP/1.1. This is a followup of GHSA-wm47-8v5p-wjpj/CVE-2021-21295 which did miss to fix this one case. This was fixed as part of 4.1.61.Final.</p> https://vulnerability.circl.lu/vuln/cve-2021-21409