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...

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...

CVE-2026-31431-C

Copy-Fail Exploit CVE-2026-31431 Local privilege escalation exploit targeting a Linux kernel copy-on-write vulnerability via AFALG sockets and splice operations. Overview This exploit abuses a kernel-level memory corruption condition in the Linux crypto subsystem AFALG combined with zero-copy...

linux-copy-fail-CVE-2026-31431

Linux Copy-Fail Analysis CVE-2026-31431 🛡️ This repository contains an in-depth analysis, Proof-of-Concept PoC, and laboratory test results for the CVE-2026-31431 vulnerability, popularly known as "Copy-Fail". Copy-Fail exploits a logic flaw in the Linux Kernel’s Crypto API AFALG combined with the...

CVE-2026-31431-Patch

CVE-2026-31431 Copy Fail Mitigation & Patch Script Image Before Patch and Vulnerable Image After Patch With Script This repository contains a specialized bash script designed to mitigate and patch CVE-2026-31431 , also known as "Copy Fail". This vulnerability is a critical Local Privilege...

copy-fail-CVE-2026-31431-universal

CVE-2026-31431 - AFALG AEAD Splice UAF PoC Multi-language implementation and compatibility with older versions of Python. C exploit.c gcc -o exploit exploit.c -O2 gcc -o exploit exploit.c -static -O2 ./exploit Tested on Ubuntu 20.04: Python exploit-python3-8-10.py Compatible with Python 3.8.10 an...

CVE-2026-31431-rs

CVE-2026-31431 PoC copyfail Structure src/ ├── main.rs Exploit: AFALG + splice to overwrite /bin/su └── bin/ └── payload.rs Payload Self-contained nostd binaries with zero runtime dependencies: poc-rs: 4.1 KB payload embedded via includebytes! payload: 1.7 KB Build Requires Rust 1.85+: cargo buil...

PATCH-CVE-2026-31431-Ubuntu_Debian

🛡️ CVE-2026-31431 Copy Fail Mitigation - Linux Kernel This repository contains scripts designed to neutralize the critical vulnerability CVE-2026-31431 , nicknamed "Copy Fail" , on Ubuntu systems. !IMPORTANT Compatibility: These scripts are tailored for and tested on Ubuntu Server 24.04 LTS. While...

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...

Copy-Fail

CVE-2026-31431 – "Copy Fail" Reachability Checker A simple, safe Python script that determines whether a Linux system is vulnerable to CVE-2026-31431 "Copy Fail", a local privilege escalation that affects all major distributions since kernel 4.14. ⚠️ What is Copy Fail? CVE-2026-31431 is a...

copy-fail_LPE_Interactive

CVE-2026-31431 Copy Fail Exploit Linux kernel page cache poisoning exploit tool with support for non-interactive command execution. Vulnerability Overview CVE-2026-31431 is a logic flaw in the Linux kernel, present in the authesn AEAD algorithm implementation. Through the AFALG and splice system...

CVE-2026-31431

CVE-2026-31431 LPE PoC Rust Implementation This project is a Proof of Concept PoC implemented in Rust for a local privilege escalation LPE vulnerability simulating CVE-2026-31431. It demonstrates how to manipulate the Linux kernel page cache by exploiting the Crypto API.cite: 1, 2 !CAUTION This...

copyfail-rs

copyfail-rs Rust implementation of CVE-2026-31431 Copy Fail — a Linux kernel page-cache write primitive via AFALG splice. 中文文档 / Chinese README CVE-2026-31431 The Linux kernel's algifaead implementation allows an unprivileged user to write arbitrary data into the page cache of any readable file v...

CVE-2026-31431

Author: 0xShe Language / 语言 English: https://github.com/0xShe/CVE-2026-31431/blob/main/README.md 中文: https://github.com/0xShe/CVE-2026-31431/blob/main/README-CN.md CVE-2026-31431 Kernel Privilege Escalation Tool Guide 0x01 Quick Start Some target environments do not have Python installed, so this...

CVE-2026-31431

🐞 CVE-2026-31431 - Copy Fail A logic flaw in authencesn chained through AFALG and splice into a controlled 4-byte write in the page cache of any readable file on the system. No race condition, no offsets, no compiled payload. The same 732-byte script gains root on every Linux distribution since...

CVE-2026-31431-Copy-Fail-R-pertoire-de-Pr-vention

🔴 CVE-2026-31431 — Copy Fail Linux Kernel Local Privilege Escalation LPE — Defensive Research Repository 📖 Overview Copy Fail CVE-2026-31431 is a Local Privilege Escalation LPE vulnerability affecting the Linux kernel via controlled corruption of the page cache through the AFALG, splice and...

copy-fail-cve-2026-31431-linux-kernel-page-cache-lpe

Copy Fail CVE-2026-31431 - Vulnerability Checker Conceptual validation script for CVE-2026-31431 "Copy Fail" — a Linux kernel local privilege escalation via algifaead page-cache write. Vulnerability CVE-2026-31431 is a logic bug in the Linux kernel's authencesn AEAD template. When combined with...

CVE-2026-31431-C

copy-fail CVE-2026-31431 Copy Fail C language PoC, logically aligned with the original Python exploit theori-io/copy-fail-CVE-2026-31431. For authorized security research and experimental environments only. Do not use on unauthorized systems. Brief Principle In Linux AFALG,...

CVE-2022-1011

CVE-2022-1011 Fix link: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=0c4bcfdecb1ac0967619ee7ff44871d93c08c909 This vulnerability is mainly due to the asynchronous nature of splice, which allows the user-mode filesystem process server side to retain a piece of memor...

Detection-Tool-Kit-for-CVE-2026-31431

copyfail-detect Detection toolkit for CVE-2026-31431 "Copy Fail", a Linux kernel local privilege escalation technique that corrupts page-cache data without changing the file on disk. Why This Exists Copy Fail can bypass traditional file integrity monitoring because the on-disk file is not modifie...