Io.netty:netty-handler

This hub aggregates every CVE we track for Io.netty:netty-handler, a product in the oss libraries space. Use it to gauge the current risk picture and drill into individual advisories.

Severity distribution

Monthly trend

The 8 most recently published vulnerabilities affecting Io.netty:netty-handler.

• CVE-2025-24970SslHandler doesn't correctly validate packets which can lead to native crash when using native SSLEngine7.5Feb 10, 2025
• CVE-2023-4586Hotrod-client: hot rod client does not enable hostname validation when using tls that lead to a mitm attack7.4Oct 4, 2023
• CVE-2023-34462netty-handler SniHandler 16MB allocation6.5Jun 22, 2023
• CVE-2020-11612The ZlibDecoders in Netty 4.1.x before 4.1.46 allow for unbounded memory allocation while decoding a ZlibEncoded byte stream. An attacker could send a large ZlibEncoded byte stream to the Netty ser...7.5Apr 7, 2020
• CVE-2019-20445HttpObjectDecoder.java in Netty before 4.1.44 allows a Content-Length header to be accompanied by a second Content-Length header, or by a Transfer-Encoding header.9.1Jan 29, 2020
• CVE-2020-7238Netty 4.1.43.Final allows HTTP Request Smuggling because it mishandles Transfer-Encoding whitespace (such as a [space]Transfer-Encoding:chunked line) and a later Content-Length header. This issue e...7.5Jan 27, 2020
• CVE-2016-4970handler/ssl/OpenSslEngine.java in Netty 4.0.x before 4.0.37.Final and 4.1.x before 4.1.1.Final allows remote attackers to cause a denial of service (infinite loop).7.5Apr 13, 2017
• CVE-2014-3488The SslHandler in Netty before 3.9.2 allows remote attackers to cause a denial of service (infinite loop and CPU consumption) via a crafted SSLv2Hello message.5.0Jul 31, 2014