Ubuntu USN · USN-8384-1

Apache HTTP Server vulnerability

Published: Thu, 04 Jun 2026 12:29

CVE-2026-49975

Summary

Apache HTTP Server could be made to consume excessive resources if it received specially crafted network traffic.

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.

Recommended actions per Ubuntu release

StackPatch playbook auto-generated per release codename and per affected package.

Ubuntu jammy

apache2→2.4.52-1ubuntu4.21apt_upgrade
Standard apt upgrade. Install 2.4.52-1ubuntu4.21 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y apache2
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
apache2→2.4.52-1ubuntu4.21apt_upgrade
Standard apt upgrade. Install 2.4.52-1ubuntu4.21 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y apache2
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
apache2-bin→2.4.52-1ubuntu4.21apt_upgrade
Standard apt upgrade. Install 2.4.52-1ubuntu4.21 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y apache2-bin
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
apache2-data→2.4.52-1ubuntu4.21apt_upgrade
Standard apt upgrade. Install 2.4.52-1ubuntu4.21 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y apache2-data
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
apache2-dev→2.4.52-1ubuntu4.21apt_upgrade
Standard apt upgrade. Install 2.4.52-1ubuntu4.21 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y apache2-dev
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
apache2-doc→2.4.52-1ubuntu4.21apt_upgrade
Standard apt upgrade. Install 2.4.52-1ubuntu4.21 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y apache2-doc
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
apache2-ssl-dev→2.4.52-1ubuntu4.21apt_upgrade
Standard apt upgrade. Install 2.4.52-1ubuntu4.21 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y apache2-ssl-dev
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
apache2-suexec-custom→2.4.52-1ubuntu4.21apt_upgrade
Standard apt upgrade. Install 2.4.52-1ubuntu4.21 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y apache2-suexec-custom
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
apache2-suexec-pristine→2.4.52-1ubuntu4.21apt_upgrade
Standard apt upgrade. Install 2.4.52-1ubuntu4.21 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y apache2-suexec-pristine
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
apache2-utils→2.4.52-1ubuntu4.21apt_upgrade
Standard apt upgrade. Install 2.4.52-1ubuntu4.21 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y apache2-utils
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
libapache2-mod-md→2.4.52-1ubuntu4.21apt_upgrade
Standard apt upgrade. Install 2.4.52-1ubuntu4.21 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y libapache2-mod-md
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
libapache2-mod-proxy-uwsgi→2.4.52-1ubuntu4.21apt_upgrade
Standard apt upgrade. Install 2.4.52-1ubuntu4.21 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y libapache2-mod-proxy-uwsgi
```
Most apt upgrades restart their service automatically. needrestart lists anything else.

Ubuntu noble

apache2→2.4.58-1ubuntu8.13apt_upgrade
Standard apt upgrade. Install 2.4.58-1ubuntu8.13 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y apache2
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
apache2→2.4.58-1ubuntu8.13apt_upgrade
Standard apt upgrade. Install 2.4.58-1ubuntu8.13 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y apache2
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
apache2-bin→2.4.58-1ubuntu8.13apt_upgrade
Standard apt upgrade. Install 2.4.58-1ubuntu8.13 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y apache2-bin
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
apache2-data→2.4.58-1ubuntu8.13apt_upgrade
Standard apt upgrade. Install 2.4.58-1ubuntu8.13 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y apache2-data
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
apache2-dev→2.4.58-1ubuntu8.13apt_upgrade
Standard apt upgrade. Install 2.4.58-1ubuntu8.13 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y apache2-dev
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
apache2-doc→2.4.58-1ubuntu8.13apt_upgrade
Standard apt upgrade. Install 2.4.58-1ubuntu8.13 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y apache2-doc
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
apache2-ssl-dev→2.4.58-1ubuntu8.13apt_upgrade
Standard apt upgrade. Install 2.4.58-1ubuntu8.13 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y apache2-ssl-dev
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
apache2-suexec-custom→2.4.58-1ubuntu8.13apt_upgrade
Standard apt upgrade. Install 2.4.58-1ubuntu8.13 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y apache2-suexec-custom
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
apache2-suexec-pristine→2.4.58-1ubuntu8.13apt_upgrade
Standard apt upgrade. Install 2.4.58-1ubuntu8.13 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y apache2-suexec-pristine
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
apache2-utils→2.4.58-1ubuntu8.13apt_upgrade
Standard apt upgrade. Install 2.4.58-1ubuntu8.13 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y apache2-utils
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
libapache2-mod-md→2.4.58-1ubuntu8.13apt_upgrade
Standard apt upgrade. Install 2.4.58-1ubuntu8.13 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y libapache2-mod-md
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
libapache2-mod-proxy-uwsgi→2.4.58-1ubuntu8.13apt_upgrade
Standard apt upgrade. Install 2.4.58-1ubuntu8.13 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y libapache2-mod-proxy-uwsgi
```
Most apt upgrades restart their service automatically. needrestart lists anything else.

Ubuntu questing

apache2→2.4.64-1ubuntu3.5apt_upgrade
Standard apt upgrade. Install 2.4.64-1ubuntu3.5 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y apache2
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
apache2→2.4.64-1ubuntu3.5apt_upgrade
Standard apt upgrade. Install 2.4.64-1ubuntu3.5 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y apache2
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
apache2-bin→2.4.64-1ubuntu3.5apt_upgrade
Standard apt upgrade. Install 2.4.64-1ubuntu3.5 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y apache2-bin
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
apache2-data→2.4.64-1ubuntu3.5apt_upgrade
Standard apt upgrade. Install 2.4.64-1ubuntu3.5 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y apache2-data
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
apache2-dev→2.4.64-1ubuntu3.5apt_upgrade
Standard apt upgrade. Install 2.4.64-1ubuntu3.5 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y apache2-dev
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
apache2-doc→2.4.64-1ubuntu3.5apt_upgrade
Standard apt upgrade. Install 2.4.64-1ubuntu3.5 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y apache2-doc
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
apache2-ssl-dev→2.4.64-1ubuntu3.5apt_upgrade
Standard apt upgrade. Install 2.4.64-1ubuntu3.5 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y apache2-ssl-dev
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
apache2-suexec-custom→2.4.64-1ubuntu3.5apt_upgrade
Standard apt upgrade. Install 2.4.64-1ubuntu3.5 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y apache2-suexec-custom
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
apache2-suexec-pristine→2.4.64-1ubuntu3.5apt_upgrade
Standard apt upgrade. Install 2.4.64-1ubuntu3.5 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y apache2-suexec-pristine
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
apache2-utils→2.4.64-1ubuntu3.5apt_upgrade
Standard apt upgrade. Install 2.4.64-1ubuntu3.5 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y apache2-utils
```
Most apt upgrades restart their service automatically. needrestart lists anything else.

Ubuntu resolute

apache2→2.4.66-2ubuntu2.2apt_upgrade
Standard apt upgrade. Install 2.4.66-2ubuntu2.2 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y apache2
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
apache2→2.4.66-2ubuntu2.2apt_upgrade
Standard apt upgrade. Install 2.4.66-2ubuntu2.2 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y apache2
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
apache2-bin→2.4.66-2ubuntu2.2apt_upgrade
Standard apt upgrade. Install 2.4.66-2ubuntu2.2 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y apache2-bin
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
apache2-data→2.4.66-2ubuntu2.2apt_upgrade
Standard apt upgrade. Install 2.4.66-2ubuntu2.2 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y apache2-data
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
apache2-dev→2.4.66-2ubuntu2.2apt_upgrade
Standard apt upgrade. Install 2.4.66-2ubuntu2.2 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y apache2-dev
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
apache2-doc→2.4.66-2ubuntu2.2apt_upgrade
Standard apt upgrade. Install 2.4.66-2ubuntu2.2 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y apache2-doc
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
apache2-ssl-dev→2.4.66-2ubuntu2.2apt_upgrade
Standard apt upgrade. Install 2.4.66-2ubuntu2.2 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y apache2-ssl-dev
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
apache2-suexec-custom→2.4.66-2ubuntu2.2apt_upgrade
Standard apt upgrade. Install 2.4.66-2ubuntu2.2 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y apache2-suexec-custom
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
apache2-suexec-pristine→2.4.66-2ubuntu2.2apt_upgrade
Standard apt upgrade. Install 2.4.66-2ubuntu2.2 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y apache2-suexec-pristine
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
apache2-utils→2.4.66-2ubuntu2.2apt_upgrade
Standard apt upgrade. Install 2.4.66-2ubuntu2.2 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y apache2-utils
```
Most apt upgrades restart their service automatically. needrestart lists anything else.

Are YOU affected by USN-8384-1?

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