========================================================================== Ubuntu Security Notice USN-8271-1 May 14, 2026
nginx vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 26.04 LTS - Ubuntu 25.10 - Ubuntu 24.04 LTS - Ubuntu 22.04 LTS Summary: nginx could be made to crash or run programs if it received specially crafted network traffic. Software Description: - nginx: small, powerful, scalable web/proxy server Details: It was discovered that the nginx ngx_http_rewrite_module component incorrectly handled certain rewrite directives. A remote attacker could use this issue to cause nginx to crash, resulting in a denial of service, or possibly execute arbitrary code. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 26.04 LTS nginx 1.28.3-2ubuntu1.1 nginx-core 1.28.3-2ubuntu1.1 nginx-extras 1.28.3-2ubuntu1.1 nginx-full 1.28.3-2ubuntu1.1 nginx-light 1.28.3-2ubuntu1.1 Ubuntu 25.10 nginx 1.28.0-6ubuntu1.3 nginx-core 1.28.0-6ubuntu1.3 nginx-extras 1.28.0-6ubuntu1.3 nginx-full 1.28.0-6ubuntu1.3 nginx-light 1.28.0-6ubuntu1.3 Ubuntu 24.04 LTS nginx 1.24.0-2ubuntu7.8 nginx-core 1.24.0-2ubuntu7.8 nginx-extras 1.24.0-2ubuntu7.8 nginx-full 1.24.0-2ubuntu7.8 nginx-light 1.24.0-2ubuntu7.8 Ubuntu 22.04 LTS nginx 1.18.0-6ubuntu14.11 nginx-core 1.18.0-6ubuntu14.11 nginx-extras 1.18.0-6ubuntu14.11 nginx-full 1.18.0-6ubuntu14.11 nginx-light 1.18.0-6ubuntu14.11 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-8271-1 CVE-2026-42945 Package Information: https://launchpad.net/ubuntu/+source/nginx/1.28.3-2ubuntu1.1 https://launchpad.net/ubuntu/+source/nginx/1.28.0-6ubuntu1.3 https://launchpad.net/ubuntu/+source/nginx/1.24.0-2ubuntu7.8 https://launchpad.net/ubuntu/+source/nginx/1.18.0-6ubuntu14.11
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