========================================================================== Ubuntu Security Notice USN-8384-1 June 04, 2026
apache2 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: Apache HTTP Server could be made to consume excessive resources if it received specially crafted network traffic. Software Description: - apache2: Apache HTTP server Details: It was discovered that Apache HTTP Server incorrectly handled certain cookie headers in the HTTP/2 implementation. A remote attacker could possibly use this issue to cause Apache HTTP Server to consume excessive resources, resulting in a denial of service. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 26.04 LTS apache2 2.4.66-2ubuntu2.2 Ubuntu 25.10 apache2 2.4.64-1ubuntu3.5 Ubuntu 24.04 LTS apache2 2.4.58-1ubuntu8.13 Ubuntu 22.04 LTS apache2 2.4.52-1ubuntu4.21 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-8384-1 CVE-2026-49975 Package Information: https://launchpad.net/ubuntu/+source/apache2/2.4.66-2ubuntu2.2 https://launchpad.net/ubuntu/+source/apache2/2.4.64-1ubuntu3.5 https://launchpad.net/ubuntu/+source/apache2/2.4.58-1ubuntu8.13 https://launchpad.net/ubuntu/+source/apache2/2.4.52-1ubuntu4.21
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