Back Linuxsecurity Ubuntu 26.04 LTS nghttp2 Important Network Access Vulnerability USN-8495
nghttp2 could allow unintended access to network services. Software Description: - nghttp2: HTTP/2 C Library and tools Details: It was discovered that the nghttp2 nghttpx proxy incorrectly handled HTTP/1.1 Upgrade requests that included a Content-Length header and body. A remote attacker could possibly use this issue to perform HTTP request and response smuggling attacks against backend services.
nghttp2 could allow unintended access to network services.
Software Description:
- nghttp2: HTTP/2 C Library and tools
It was discovered that the nghttp2 nghttpx proxy incorrectly handled
HTTP/1.1 Upgrade requests that included a Content-Length header and body.
A remote attacker could possibly use this issue to perform HTTP request and
response smuggling attacks against backend services.
The problem can be corrected by updating your system to the following package versions: Ubuntu 26.04 LTS nghttp2 1.68.0-2ubuntu0.2 Ubuntu 25.10 nghttp2 1.64.0-1.1ubuntu1.2 Ubuntu 24.04 LTS nghttp2 1.59.0-1ubuntu0.4 Ubuntu 22.04 LTS nghttp2 1.43.0-1ubuntu0.4 In general, a standard system update will make all the necessary changes.
Ubuntu Security Notice USN-8495-1
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