cve-2026-31431-checker

CVE-2026-31431 Copy Fail Detection Tool A comprehensive detection and analysis tool for CVE-2026-31431 "Copy Fail" vulnerability in Linux kernels. ⚠️ IMPORTANT DISCLAIMER This tool is for DETECTION ONLY. It does not exploit or modify any system files. Only reads system information and configuratio...

CVE-2026-31431

Copy Fail - CVE-2026-31431 Technical Writeup Tested Distro / Version Distro| Version ---|--- Ubuntu 24.04 LTS| 6.17.0-1007-aws Amazon Linux 2023| 6.18.8-9.213.amzn2023 RHEL 10.1| 6.12.0-124.45.1.el101 SUSE 16| 6.12.0-160000.9-default...

copy-fail-mitigation-with-bpftrace

copy-fail-mitigation-with-bpftrace CVE-2026-31431, AKA Copy Fail, can be mitigated in one-line with bpftrace, no kpatch building, no cargo building English Version | 中文版本 Idea To exploit Copy Fail, you need to bind socket AFALG and use algorithm authencesn , which most applications don't use a lo...

copyfail-arm64

Copy Fail ARM64 Research CVE-2026-31431 Analysis and ARM64 reproduction of the Copy Fail Linux kernel privilege escalation vulnerability CVE-2026-31431, originally disclosed by Xint. Blog post: Copy Fail on ARM64: Understanding and Porting CVE-2026-31431 What's Included File| Description ---|---...

copy-fail-CVE-2026-31431

Copy Fail CVE-2026-31431 - PoC This repository contains a Proof of Concept PoC for the Copy Fail CVE-2026-31431 vulnerability. ⚠️ Disclaimer: This project is for educational and research purposes only. Do NOT use this on systems you do not own or do not have permission to test. 🧪 Usage Follow the...

copy-fail

copy-fail PoC of CVE-2026-31431 USAGE: wget https://raw.githubusercontent.com/pedromizz/copy-fail/main/poc.py python3 poc.py $ id uid=0root pedromizz :...

copy-fail-CVE-2026-31431

CVE-2026-31431 Copy Fail exploit Author: pyroceper Tested on: Ubuntu 25.10 x8664 $ make $ ./exploit Detected kernel: 6.17.0 Making backup of /etc/passwd to /tmp Backup saved as /tmp/passwd.bak Obtaining root shell... id uid=0pwn gid=0root groups=0root whoami pwn CREDITS & REFERENCES: Original...

CVE-2026-31431-Copy-Fail

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ubuntu-cve-2026-31431-mitigation

Complete Guide to Updating the Kernel and kmod in Ubuntu to Fix Security Vulnerabilities CVE CVE-2026-31431 This vulnerability, also known as Copy Fail, is a logic bug in the Linux kernel that occurs in the AFALG / algifaead path. According to the discloser, an unprivileged local user can cause t...

copy-fail-rs

This repository does not have a README...

copy-fail-CVE-2026-31431

Copy Fail - CVE-2026-31431 Technical Writeup Tested Distro / Version Distro| Version ---|--- Ubuntu 24.04 LTS| 6.17.0-1007-aws Amazon Linux 2023| 6.18.8-9.213.amzn2023 RHEL 10.1| 6.12.0-124.45.1.el101 SUSE 16| 6.12.0-160000.9-default...

ansible-role-cve-2026-31431

ansible-role-cve-2026-31431 Ansible role to apply and later remove the modprobe.d mitigation for CVE-2026-31431 "Copy Fail" in the Linux kernel's AFALG / algifaead subsystem. Tested on Debian. Pull requests for other distributions, edge cases, or improvements are very welcome. What it does The ro...

CVE-2026-31431-live-process-code-injection

CVE-2026-31431 Copy Fail — Live Process Code Injection PoC Demonstrates arbitrary code execution in a running process via page cache. by @secinfosex What it does: 1. Compiles a test binary: check return 42; in an infinite loop 2. Launches the process 3. Waits for "check = 42" output 4. Replaces...

copy-fail-CVE-2026-31431

Copy Fail - CVE-2026-31431 Technical Writeup Tested Distro / Version Distro| Version ---|--- Ubuntu 24.04 LTS| 6.17.0-1007-aws Amazon Linux 2023| 6.18.8-9.213.amzn2023 RHEL 10.1| 6.12.0-124.45.1.el101 SUSE 16| 6.12.0-160000.9-default...

copy-fail-check

copy-fail-check CVE-2026-31431 Helper based on https://copy.fail/ Copy Fail Quick Check Interactive bash helper to review basic exposure related to CVE-2026-31431 Copy Fail and apply a temporary mitigation based on algifaead. Target compatibility Mainly intended for: Debian / Ubuntu AlmaLinux /...

play-go-copy-fail-cve-2026-31431

Play Go Copy Fail CVE-2026-31431 Purpose Learn linux syscall low-level Port python and c into golang Craft own payload then exploit as newbie Auto upgrade pty manually Inspiration tgies/copy-fail-c painoob/Copy-Fail-Exploit-CVE-2026-31431 Resource Linux Source Crypto...

Weekly-Breach-Investigation--006

Copy Fail Vulnerability CVE-2026-31431 Summary High-severity local privilege escalation flaw in the Linux kernel, allowing unprivileged users to gain root access by corrupting the in-memory page cache. Impacts Linux distributions since 2017 and poses serious risks to cloud and containerized...

CVE-2026-31431-live-code-corruption

CVE-2026-31431 — Live Code Corruption via Page Cache A novel exploitation technique for CVE-2026-31431 "Copy Fail" that corrupts executable code of running processes through the Linux kernel's page cache, achieving root privilege escalation. What's Different All published exploits for this CVE...

afalg-check

Itsumma AFALG Check Diagnostic utility for Linux that checks: availability of AFALG / algifaead and helps assess the risk of CVE-2026-31431 copy-fail; the presence of an attack surface for the Dirty Frag vulnerability class xfrm-ESP Page-Cache Write + RxRPC Page-Cache Write chain across the esp4,...

CVE-2026-31431-Copy-Fail-Container-Escape

CVE-2026-31431-Copy-Fail-Container-Escape Demo https://github.com/user-attachments/assets/2cb0cb67-789a-4461-a0b8-1fe878d9426e Prerequisite Container vulnerable to CVE-2026-31431 Container healthcheck configured and healthcheck CMD known Obtained root access inside the container if not, you can...