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📟Root Termux
Other |
2026-05-30 08:45:23
أخرى
CVE-2026-31431 — "Copy Fail"
COPY FAIL
CVE-2026-31431 is a high-severity Linux kernel privilege escalation vulnerability affecting major Linux distributions released since 2017. The flaw exists within the kernel cryptographic subsystem and enables reliable elevation of privileges through a deterministic logic issue.
CVE
31431Severity
HIGHCVSS
7.8Affected Since
2017Overview
Copy Fail is a Linux kernel local privilege escalation vulnerability publicly disclosed in April 2026. Security researchers reported that the issue affects a large portion of Linux systems including Ubuntu, Amazon Linux, SUSE, Rocky Linux and enterprise environments.
The flaw resides within the kernel's AF_ALG cryptographic interface and can allow an unprivileged local user to gain elevated privileges under specific conditions.
Why It Matters
Reliable Exploitation
Researchers described the issue as highly reliable without requiring race-condition timing.
Cloud & Container Risk
Shared-kernel environments such as containers and Kubernetes clusters may be significantly impacted.
Wide Distribution Impact
Multiple enterprise Linux distributions were reported as vulnerable before vendor patches became available.
Technical Summary
| CVE | CVE-2026-31431 |
| Nickname | Copy Fail |
| Severity | High |
| Type | Local Privilege Escalation |
| Component | algif_aead |
| CVSS | 7.8 |
Affected Systems
| Ubuntu 24.04 LTS | Affected Before Patch |
| Amazon Linux 2023 | Affected Before Patch |
| RHEL 10.x | Affected Before Patch |
| SUSE 16 | Affected Before Patch |
| Rocky Linux 9.x | Affected Before Patch |
Mitigation
Recommended Action
Apply vendor-provided kernel updates immediately. Organizations should prioritize patch deployment on internet-facing systems, cloud workloads, container hosts, CI/CD environments and shared infrastructure.
Apply vendor-provided kernel updates immediately. Organizations should prioritize patch deployment on internet-facing systems, cloud workloads, container hosts, CI/CD environments and shared infrastructure.
RootRaid Analysis
The most notable aspect of Copy Fail is the combination of reliability, broad compatibility and stealth characteristics. Security vendors highlighted its potential impact across enterprise Linux deployments, cloud platforms and containerized workloads.
Organizations should monitor security advisories from their Linux distribution vendors and ensure kernel updates are applied as part of their regular vulnerability management process.
