CVE-2026-31431-Copy-Fail-Detection-Toolkit

CVE-2026-31431 Copy Fail Detection Toolkit Detection and analysis toolkit for CVE-2026-31431 "Copy Fail" - a critical Linux Local Privilege Escalation vulnerability affecting distributions from 2017 onwards. Vulnerability Overview CVE-2026-31431 exploits a logic flaw in the Linux kernel's algifae...

CVE-2026-31431

CVE-2026-31431 — Copy Fail 中文版 732 Bytes to Root on Every Major Linux Distribution CVE-2026-31431 Copy Fail is a logic bug in the Linux kernel's authencesn cryptographic template. It allows an unprivileged local user to trigger a deterministic, controlled 4-byte write into the page cache of any...

CVE-2026-31431-Copy-Fail---Vulnerability-Detection-Script

CVE-2026-31431 — Copy Fail — Vulnerability Detection Script Detection only. A working PoC already exists at copy.fail/exploit. This script is for sysadmins and security teams determining where they are vulnerable — or still vulnerable after patching. What's this about? On April 29th 2026, a...

copyfail-c

copyfail-c A minimal C reproduction for researching Copy Fail CVE-2026-31431. This repository contains a compact C implementation built around the Linux kernel AFALG interface for vulnerability research, behavior analysis, and controlled reproduction. Repository layout root@kitploit: . ├── src/ C...

cve-2026-31431

CVE-2026-31431 Copy Fail Detection and Mitigation Tool This project provides a set of Bash scripts for detecting and mitigating CVE-2026-31431 also known as "Copy Fail", a Linux kernel local privilege escalation vulnerability. Vulnerability Overview CVE ID : CVE-2026-31431 Vulnerability Type :...

copy-fail-CVE-2026-31431-IOC

copyfail-detect CVE-2026-31431（「Copy Fail」）の検出ツールキット。Linuxカーネルのローカル権限昇格手法であり、ディスク上のファイルを変更せずにページキャッシュデータを破壊するものです。 存在理由 Copy Failは、ディスク上のファイルが変更されないため、従来のファイル整合性監視を回避できます。このリポジトリは、auditd、eBPF、ページキャッシュ比較、Sigmaルール、レスポンダー用ドキュメントを使用した多層検出を提供します。...

CVE-2026-31431-Linux-Copy-Fail

CVE-2026-31431 - Linux Copy-Fail Exploit Rust A Rust implementation of a local privilege escalation exploit for CVE-2026-31431 Copy-Fail. It allows executing customized shellcode such as Meterpreter Introduction Xint disclosed CVE-2026-31431, an arbitrary page cache write vulnerability that chain...

CVE-2026-31431-Verificador-Exploit

CVE-2026-31431 - Linux Kernel Privilege Escalation Exploit Description Functional exploit for the CVE-2026-31431 vulnerability that allows local privilege escalation on Linux systems by exploiting a flaw in the kernel's AFALG cryptographic subsystem combined with the splice system call. Features...

CopyFile_CVE-2026-31431

CopyFileCVE-2026-31431 Copy Fail CVE-2026-31431 – Local Privilege Escalation Exploit A logic bug in the Linux kernel’s authencesn AEAD template allows an unprivileged user to write 4 controlled bytes into the page cache of any readable file. The provided Python script corrupts /usr/bin/su in memo...

harden-docker-seccomp

harden-docker-seccomp Idempotent script to block AFALG socket creation for all Docker containers on a host as mitigation for CVE-2026-31431 "Copy Fail". Background CVE-2026-31431 is a local privilege escalation in the Linux kernel's authencesn cryptographic template, present in kernels built...

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...

cve-2026-31431-mitigation

CVE-2026-31431 Mitigation Script This repository provides a temporary mitigation and revert script for CVE-2026-31431, a Linux kernel local privilege escalation vulnerability. Disclaimer This is a temporary workaround, not a permanent fix. Use at your own risk. Always test in a non-production...

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

Copy Fail CVE-2026-31431 - Comprehensive Writeup 1. Vulnerability Overview Vulnerability Name: Copy Fail CVE Identifier: CVE-2026-31431 Discovered By / Authors: Xint Code Research Team building upon initial foundational research by Theori researcher Taeyang Lee. "Copy Fail" is a critical logic...

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 root@kitploit: 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...

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...

CVE-2026-31431-rs

CVE-2026-31431 PoC copyfail Structure root@kitploit: 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...

copyfail

Copy Fail - CVE-2026-31431 PoC in C Local privilege escalation exploit for CVE-2026-31431 Copy Fail, written in C. How It Works 1. ELF parsing : resolves /usr/bin/su's entry point virtual address to a file offset via PTLOAD program headers 2. AFALG setup : binds to authencesnhmacsha256,cbcaes wit...

cve-2026-31431

CVE-2026-31431 "Copy Fail" - Page Cache Corruption Vulnerability Linux kernel page cache corruption via authencesn AEAD manipulation. ⚠️ IMPORTANT: Exploitation Status Update May 1, 2026 After extensive testing on multiple OpenShift 4.20.16 clusters with RHEL 9.6 kernels: ✅ Page Cache Corruption:...

modrosnlr5

🧬 modrosnlr5 – Linux Kernel LPE PoC CVE-2026-31431 Proof-of-concept tool designed to validate the exploitation of the CVE-2026-31431 vulnerability on Linux systems. The exploit leverages the kernel's AFALG socket interface to inject a payload and obtain a root shell from an unprivileged user...