CVE-2026-31431

CVE-2026-31431 — Local Privilege Escalation via AFALG 2026-04-29 — I am publishing this exploit one day after sharing it on theMyDigitalLife forum. It does not require Python; it is written in C and compiled to the smallest possible size using: musl-gcc -static -Os -o exploit exploit.c -s Critica...

Copy-Fail-CVE-2026-31431-Statically-PoC

Copy-Fail CVE-2026-31431 Static Go PoC This repository contains a Go port of the public Python proof of concept from theori-io/copy-fail-CVE-2026-31431. The program is Linux-only. It uses the Linux AFALG interface, AEAD control messages, and splice2 to preserve the behavior of the original PoC...

CVE-2026-31431-exp

Adapted from https://github.com/theori-io/copy-fail-CVE-2026-31431. Added payload encryption and obfuscation, cache write-back to improve system stability, adaptive chunking, zero dependencies, multi-architecture support x86, arm, i386, etc., and other features. In theory, it can be exploited on...

CVE-2026-68138

CVE-2026-68138: Linux qdisc rate-table race to local root This repository contains a proof-of-concept local privilege-escalation exploit for CVE-2026-68138 , a race in the Linux traffic-control rate-table code. In the tested QEMU environment, the PoC escalates from an ordinary process with outer...

copy-fail-fix

copy-fail-fix Per-distro mitigation scripts for CVE-2026-31431 "Copy Fail" — a Linux kernel algifaead local privilege escalation that affects essentially every distro shipped since 2017. Each script either installs a patched kernel from your distribution's repos when one is available or, if not,...

CVE-2026-31431

🚨 CVE-2026-31431: Copy Fail A critical 9-year-old flaw in the Linux kernel that allows obtaining root access in seconds 📋 Executive Summary Attribute| Details ---|--- CVE| CVE-2026-31431 Nickname| Copy Fail Type| Local Privilege Escalation LPE CVSS| 7.8 High Discovered by| Theori Xint Code...

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,...

dirtyfrag-patches

Dirty Frag — Kernel Patches Patch series for the Dirty Frag vulnerability class discovered by Hyunwoo Kim @v4bel. Dirty Frag allows an unprivileged local user to overwrite arbitrary bytes of the page cache of read-only files e.g. /usr/bin/su, /etc/passwd leading to local privilege escalation to...

CVE-2026-31431-Check

CVE-2026-31431 Copy Fail Vulnerability Check Script Vulnerability Overview CVE-2026-31431 Copy Fail is a Linux kernel local privilege escalation vulnerability that exploits AFALG sockets address family 38 combined with the splice zero-copy system call to bypass file write permissions and tamper...

CVE-2026-31431-cleaned

copyFail.py — CVE Exploit Analysis Report Summary copyFail.py is a proof-of-concept PoC exploit that demonstrates a local privilege escalation vulnerability in the Linux kernel. By abusing the splice system call in combination with crafted socket options, the exploit gains the ability to corrupt...

CVE-2026-31431-Copy-Fail

CVE-2026-31431-Copy-Fail xpl0ited by infrar3d This repository contains a proof‑of‑concept exploit for CVE-2026-31431 Copy Fail. CVE-2026-31431, known as "Copy Fail", is a high-severity Local Privilege Escalation LPE flaw in the Linux kernel that has been present for nearly a decade. It allows an...

fix-cve-2026-3143

fix-cve-2026-3143 Diagnostics and remediation for CVE-2026-31431 copy fail Installation Copy the installation script to the clipboard and run it in the command line sudo apt install git && cd && git clone https://github.com/ClimbMunchkin/fix-cve-2026-3143.git fix-cve-2026-3143 && chmod +x...

cve-2026-31431

CVE-2026-31431 "Copy Fail" — IR Playbook & Detection Package Production-ready IR playbook, detection rules, and SOC triage guidance for CVE-2026-31431 — a Linux kernel local privilege escalation in the algifaead crypto interface. Includes an interactive HTML playbook , Sigma rules, auditd configs...

CVE_kernellinux_jsh

CVEkernellinuxjsh — kernelsec Framework Author: jshDevs · Version: 0.1.0-scaffold · License: MIT Modular Bash framework for auditing and remediating critical Linux kernel CVEs on RPM-based distributions AlmaLinux 8/9, Rocky Linux 8/9, CentOS Stream 8/9/10. Covered CVEs CVE| Subsystem| Type| CVSS|...

cve-testing

Linux kernel There are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. Please read Documentation/admin-guide/README.rst first. In order to build the documentation, use make htmldocs or make pdfdocs. The formatted documentatio...

copy-fail-CVE-2026-31431-shell

CVE-2026-31431 - copyfail shell Local privilege escalation via AFALG socket + splice page-cache overwrite. Overwrites a read-only SUID binary /usr/bin/su with a minimal ELF that calls setuid0 + execve"/bin/sh". No race condition, no per-distro offsets, single shot. $ ./copyfailexp.sh Kernel:...

cve-2026-31431-copyfail

CVE-2026-31431 — "Copy Fail" 🔐 Educational technical analysis of one of the most significant Linux kernel vulnerabilities since Dirty Pipe 2022. This repository is intended for research, study, and defense. No functional exploit is distributed here. Table of Contents What is it? For laypeople: th...

cve-2026-31431-poc

CVE 2026-31431 POC This exploit takes advantage of a flaw in the length validation of authencesn in Linux, causing dirty pages to be written back to locations the user has no permission to access, resulting in privilege escalation. The attack principle is mainly based on this repo, with some...

MitigationToolkit-ROSN-LR5-Full

🧬 ROSN-LR5 – Kernel LPE PoC & Mitigation Toolkit CVE-2026-31431 Offensive and defensive tool for the CVE-2026-31431 vulnerability on Linux systems. It combines a local privilege escalation LPE proof of concept with utilities to review and temporarily mitigate the AFALG-based attack vector. ⚖️...

copy-fail-cve-2026-31431

Copy Fail - CVE-2026-31431 This repository provides a Go port of the public Copy Fail PoC and a reproducible build pipeline for multi architecture Linux binaries. Copy Fail CVE-2026-31431 is a Linux kernel logic flaw in authencesn that enables a deterministic 4 byte write into page cache data...