CVE-2026-76816

Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.137.Final and 4.2.17.Final, MqttEncoder does not validate client identifiers, will topics, usernames, and PUBLISH topic names before encoding, allowing prohibited null bytes in MQTT UTF-8 string fields and...

CVE-2026-76816

Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.137.Final and 4.2.17.Final, MqttEncoder does not validate client identifiers, will topics, usernames, and PUBLISH topic names before encoding, allowing prohibited null bytes in MQTT UTF-8 string fields and...

UBUNTU-CVE-2026-76816

Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.137.Final and 4.2.17.Final, MqttEncoder does not validate client identifiers, will topics, usernames, and PUBLISH topic names before encoding, allowing prohibited null bytes in MQTT UTF-8 string fields and...

CVE-2026-76816 Netty: MQTT Topic Name and Client ID Validation Bypass

Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.137.Final and 4.2.17.Final, MqttEncoder does not validate client identifiers, will topics, usernames, and PUBLISH topic names before encoding, allowing prohibited null bytes in MQTT UTF-8 string fields and...

CVE-2026-76816

Netty , an asynchronous event-driven network framework, contains a validation bypass in its MqttEncoder prior to versions 4.1.137.Final and 4.2.17.Final . The encoder fails to validate client identifiers, will topics, usernames, and PUBLISH topic names before encoding, allowing prohibited null by...

CVE-2026-76816

Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.137.Final and 4.2.17.Final, MqttEncoder does not validate client identifiers, will topics, usernames, and PUBLISH topic names before encoding, allowing prohibited null bytes in MQTT UTF-8 string fields and...

CVE-2026-76816 Netty: MQTT Topic Name and Client ID Validation Bypass

Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.137.Final and 4.2.17.Final, MqttEncoder does not validate client identifiers, will topics, usernames, and PUBLISH topic names before encoding, allowing prohibited null bytes in MQTT UTF-8 string fields and...

Astra Linux – Vulnerabilities in nghttp2, netty, tomcat9, jetty9, grpc

The HTTP/2 protocol allows for a denial of service server resource consumption, as request cancellation can quickly reset many streams, as exploited in practice from August to October 2023...

Astra Linux – Vulnerability in Netty

Netty is an asynchronous event-driven network application framework for rapid development of maintainable high-performance protocol servers and clients. In Netty-Codec-Compression versions 4.1.124.Final and below, as well as Netty-Codec versions 4.2.4.Final and below, when supplied with specially...

Astra Linux – Vulnerability in Netty

The Bzip2 decompression decoder function does not allow setting size restrictions on the decompressed output data which affects the allocation size used during decompression. This affects all users of Bzip2Decoder. Malicious inputs can trigger an OOME, thereby causing a DoS attack...

Astra Linux – Vulnerability in Netty

Netty 4.1.43.Final allows HTTP Request Smuggling because it mishandles Transfer-Encoding whitespace such as a spaceTransfer-Encoding:chunked line and a later Content-Length header. This issue exists due to an incomplete fix for CVE-2019-16869...

Astra Linux – Vulnerability in Netty

Netty is an open-source, asynchronous event-driven network application framework for rapid development of maintainable high-performance protocol servers and clients. In Netty io.netty:netty-codec-http2, before version 4.1.60.Final, there was a vulnerability that allowed for request smuggling. If...

Astra Linux – Vulnerability in Netty

Netty is an open-source, asynchronous event-driven network application framework for rapid development of maintainable high-performance protocol servers and clients. Before version 4.1.59.Final, there was a vulnerability on Unix-like systems involving an insecure temporary file. When Netty’s...

Astra Linux – Vulnerability in Netty

The Netty project is an event-driven, asynchronous network application framework. In versions prior to 4.1.86.Final, a StackOverflowError could occur when parsing a malformed message due to infinite recursion. This issue has been fixed in version 4.1.86.Final. There is no workaround, except by...

Astra Linux – Vulnerability in Netty

Netty is an asynchronous, event-driven network application framework for developing maintainable, high-performance protocol servers and clients. In versions 4.1.124.Final and 4.2.0.Alpha3 through 4.2.4.Final, Netty incorrectly accepts standalone newline characters LF as a chunk-size line...

Astra Linux – Vulnerability in Netty

The Netty project is an event-driven, asynchronous network application framework. Starting from version 4.1.83.Final and before 4.1.86.Final, when calling DefaultHttpHeaders.set with an iterator of values, header value validation was not performed. This allowed malicious header values in the...

Astra Linux – Vulnerability in Netty

The Snappy frame decoder function does not limit the chunk length, which can lead to excessive memory usage. In addition, it may also buffer reserved skipable chunks until the entire chunk is received, which can also result in excessive memory usage. This vulnerability can be exploited by providi...

Astra Linux – Vulnerability in Netty

Netty is an asynchronous, event-driven network application framework. In versions prior to 4.1.129.Final and 4.2.8.Final, the io.netty.handler.codec.http.HttpRequestEncoder had a CRLF injection in the request URI during request construction. This led to request smuggling when HttpRequestEncoder w...

Astra Linux – Vulnerability in Netty

In Netty 4.1.x before 4.1.46, the ZlibDecoders allowed unbounded memory allocation when decoding Zlib-encoded byte streams. An attacker could send a large Zlib-encoded byte stream to the Netty server, forcing the server to allocate all of its available memory to a single decoder...

Astra Linux – Vulnerability in Netty

The HttpObjectDecoder.java file in Netty before version 4.1.44 allowed a Content-Length header to be accompanied by a second Content-Length header, or by a Transfer-Encoding header...