May 1, 2026
CVE-2026-31431 (CopyFail) mitigation applied to IBEE server images
IBEE has applied security mitigations for CVE-2026-31431 (CopyFail vulnerability) across all supported Linux server images.
The following operating systems now include this protection by default:
- Debian 12
- Debian 13
- Ubuntu 22.04
- Ubuntu 24.04
- Ubuntu 26.04
The mitigation blacklists the affected kernel module during boot and prevents it from loading automatically.
All newly deployed IBEE Cloud servers now include this protection by default. No customer action is required for new deployments.
Workaround for existing servers
For servers deployed before this update, we recommend manually applying the mitigation by disabling the vulnerable algif_aead kernel module.
Run the following commands as root:
The first command prevents the module from loading during future boots. The second command unloads the module immediately if it is currently active.
Supported distributions
This workaround is applicable to most major Linux distributions, including:
Debian-based
- Debian
- Ubuntu
Red Hat-based
- RHEL
- AlmaLinux
- Rocky Linux
- Oracle Linux
SUSE-based
- SUSE Linux
- openSUSE
Other distributions
- Arch Linux
- Gentoo
- Amazon Linux
Additional information
IBEE continuously monitors critical infrastructure and kernel-level security advisories to ensure rapid mitigation across our cloud platform.
At this time, no exploitation activity related to CVE-2026-31431 has been detected within IBEE infrastructure.
