CVE-2026-31431

CVE-2026-31431 — Copy Fail Local Privilege Escalation in the Linux kernel's authencesn cryptographic template via AFALG + splice. Disclosed April 29, 2026 by Theori Xint Code. Overview Field| Detail ---|--- CVE| CVE-2026-31431 Nickname| Copy Fail CVSS| 7.8 HIGH Type| Local Privilege Escalation LP...

cve-2026-31431

CVE-2026-31431 — "Copy Fail" Research Repository A 100% reliable Linux local privilege escalation affecting every mainstream distribution since 2017. One logic bug in authencesn, chained through AFALG and splice into a 4-byte page-cache write — silently exploitable for nearly a decade. ⚠️...

CVE-2026-31431-CopyFail-static-ELF--POC

CVE-2026-31431: Copy Fail - 587-byte static ELF I did not find this bug. Credit goes to Xint Code / Theori. This repo is my take on making the exploit as small as possible - a hand-rolled x8664 ELF that does the full LPE in 587 bytes. No libc, no linker, no runtime. Just NASM and stubbornness. In...

CVE-2026-31431-Metasploit-exploit

CVE-2026-31431 - Linux Kernel AFALG "Copy Fail" Local Privilege Escalation An automated Metasploit Post-Exploitation module that leverages CVE-2026-31431 popularly known as "Copy Fail" to perform Local Privilege Escalation LPE on vulnerable Linux kernels versions 4.14 through 6.19.12. Description...

CVE-2026-31431

🐞 CVE-2026-31431 - Copy Fail Un fallo lógico en authencesn encadenado a través de AFALG y splice hasta una escritura controlada de 4 bytes en el page cache de cualquier archivo legible del sistema. Sin condición de carrera, sin offsets, sin payload compilado. El mismo script de 732 bytes obtiene...

CVE-2022-0847-Dirty-Pipe-

CVE-2022-0847-Dirty-Pipe- this is a repo who is facing a escalation issue in their linux system and a news regarding problem of "Dirty pipeline" Max Kellermann, a developer at CM4all a German web hosting company, found it in early 2022 but not by checking for vulnerability. He was debugging when ...

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...

copy_fail

Copy Fail — CVE-2026-31431 CVE-2026-31431 Copy Fail is a local privilege escalation vulnerability in the Linux kernel's algifaead module AFALG subsystem. A logic flaw introduced in August 2017 allows any unprivileged local user to write 4 controlled bytes into the page cache of any readable file...

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...

Copy-Fail-CVE-2026-31431-Kubernetes-PoC

Copy Fail CVE-2026-31431 — Kubernetes Container Escape PoC A proof-of-concept demonstrating how a fully unprivileged container can achieve node-level code execution on Kubernetes by exploiting the CVE-2026-31431 Linux kernel page-cache corruption bug through shared container image layers...

CVE-2026-31431-Copy-Fail---Advanced-LPE-Proof-of-Concept---C-Rewrite

CVE-2026-31431 "Copy Fail" - Advanced LPE Proof-of-Concept - C Rewrite An advanced, byte-perfect Local Privilege Escalation LPE Proof-of-Concept PoC for CVE-2026-31431 , exploiting a logic flaw in the Linux kernel's cryptography subsystem algifaead. This repository contains a highly optimized C...

CVE-2026-31431

AFALG su memory‑patch exploit research A compact Python script that exploits an AFALG‑related kernel vulnerability to patch the su binary in memory and escalate privileges. This is provided for educational and research purposes only. ⚠️ Do not use this on any system you do not own or without...

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...

COPY-FAIL

Copy Fail -- CVE-2026-31431 Implementación robusta en C para operaciones de redteam y pruebas de penetración autorizadas. ⚠️ Aviso legal: Esta herramienta está destinada exclusivamente para investigación de seguridad autorizada, pruebas de penetración autorizadas y análisis defensivo. Úsela...

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-add-arm64

Vulnerability Overview Item| Content ---|--- CVE ID| CVE-2026-31431 Vulnerability Name| Copy Fail Vulnerability Type| Linux Kernel Local Privilege Escalation LPE CVSS 3.1 Score| 7.8 HIGH CWE| CWE-669: Incorrect Resource Transfer Between Spheres Affected Scope| All Linux kernels built between 2017...

Copy-Fail

CVE-2026-31431 "Copy Fail" - Local Privilege Escalation Python 3.7+ compatible version including Astra Linux Safe check without exploitation: root@kitploit: curl -s https://raw.githubusercontent.com/p401a-ops/Copy-Fail/refs/heads/main/detect.py | python3 Exploitation when prompted, you will need ...

cve-2026-31431

CVE-2026-31431 Copy Fail Toolkit This repository contains detectors and a PoC for the Linux algifaead / authencesn page-cache scratch-write vulnerability CVE-2026-31431. Disclosure article: https://xint.io/blog/copy-fail-linux-distributions Authorization Notice Only use this on hosts you own or...

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...

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...