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-algif-aead-remediator

CVE-2026-31431 / GHSA-2274-3hgr-wxv6 — algifaead Remediator Severity: High CVSS 7.8 — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Background CVE-2026-31431 is a local privilege escalation vulnerability in the Linux kernel's algifaead module AFALG AEAD crypto socket interface. A low-privileged...

CVE-2026-31431-Exploit

CVE-2026-31431 "Copy Fail" Exploit A professional proof-of-concept for the CVE-2026-31431 vulnerability, a critical flaw in the Linux kernel's algifaead / authencesn page-cache handling. Overview The CVE-2026-31431 vulnerability, colloquially known as "Copy Fail" , involves a page-cache...

CVE-2026-31431

CVE-2026-31431: "Copy Fail" - Linux Kernel Local Privilege Escalation 📢 Disclaimer This repository is strictly for educational and cybersecurity research purposes. The exploit code is analyzed to understand the underlying vulnerability, facilitate patching, and develop defensive strategies. Do no...

CVE-2026-31431-Analysis-and-Fix

CVE-2026-31431 "Copy Fail" — Technical Deep Dive Severity: CVSS 7.8 High Class: Local Privilege Escalation Introduced: Linux 4.14 2017 Fixed: commit a664bf3d603d 1. Background CVE-2026-31431 is a local privilege escalation flaw in the Linux kernel's algifaead module — the AEAD socket interface of...

block-copyfail

block-copyfail Prova di concetto di mitigazione runtime per CVE-2026-31431 "Copy Fail" — un'escalation di privilegi nel kernel Linux tramite il template crittografico authencesn in algifaead. A differenza del blacklisting dei moduli, questo non richiede riavvio. Un programma BPF LSM aggancia...

copyfail-CVE-2026-31431

copyfail-CVE-2026-31431 Extended version of the CVE-2026-31431 "Copy Fail" Linux Local Privilege Escalation PoC. Credits Original discovery & exploit: Theori / Xint — copy.fail Original repo: theori-io/copy-fail-CVE-2026-31431 Extended by: Trex1e What's different in this version Automatically...

copy-fail-CVE-2026-31431

CVE-2026-31431 — Copy Fail Linux kernel local privilege escalation via AFALG + splice page-cache overwrite For authorized security research, penetration testing, and educational purposes only. Do not use against systems you do not own or have explicit written permission to test. Technical Writeup...

CVE-2026-31431

CVE-2026-31431 — From a NULL Pointer to Root: Exploiting AFALG AEAD in the Linux Kernel Bug class: Null pointer dereference → heap OOB write → credential overwrite Affected subsystem: net/alg/afalg.c Impact: Local Privilege Escalation unprivileged user → root Affected kernels: Linux 4.4 – 4.9...

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...

CVE-2026-29000-pac4j-jwt

pac4j-jwe-forge CVE-2026-29000 Proof-of-concept for CVE-2026-29000. Targets pac4j-jwt versions prior to 4.5.9, 5.7.9, and 6.3.3. The vulnerability is straightforward: the library accepts a PlainJWT unsigned, alg=none as long as it's wrapped inside a valid JWE. Since the server exposes its RSA...

CVE-2026-31431-Copy-Fail

CVE-2026-31431 — Copy Fail Severity: Critical CVSS v3.1: 9.8 AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H Status: Public Exploit Available Summary CVE-2026-31431 "Copy Fail" is a local privilege escalation vulnerability in the Linux kernel cryptographic subsystem. Any unprivileged user can escalate to roo...

CVE-2026-31431-PoC

CVE-2026-31431 PoC Local Privilege Escalation in the Linux Kernel via algifaead Page Cache Write "Copy Fail" Author: Van Glenndon Enad Original Discovery: Theori / Xint Code Research Team Taeyang Lee Published: April 29, 2026 Severity: High CVSS v3.1 Score: 7.8 CVSS v3.1 Vector:...

GhostShell

GhostShell CVE-2026-31431 — Local Privilege Escalation via Linux Kernel Page Cache Corruption GhostShell is a local privilege escalation tool that exploits a flaw in the Linux kernel's authencesn AEAD crypto implementation to obtain a root shell from an unprivileged user account. It corrupts the...

cve-2026-31431

CVE-2026-31431 "Copy Fail" — Detection & Safe Kernel Patch Scripts Linux kernel local privilege escalation via algifaead AFALG CVSS 7.8 HIGH | Public disclosure: April 2026 ⚡ Quick Start 1. Detection Script safe, read-only Run as a normal user: curl -fsSL...

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...

Copy-Fail---CVE-2026-31431

Copy-Fail---CVE-2026-31431 CVE-2026-31431 "Copy Fail" - Analysis and defensive research for the Linux kernel AFALG privilege escalation vulnerability affecting all major distributions since 2017. 100% reliable LPE via authencesn logic flaw Files include a binary , that automates the whole process...

Copy-Fail---CVE-2026-31431

CVE-2026-31431 - Copy Fail - Detection Script Python script to check whether a Linux system is vulnerable to the CVE-2026-31431 Copy Fail flaw, a local privilege escalation in the Linux kernel. The flaw in brief Since 2017 commit 72548b093ee3, the kernel's algifaead cryptographic module has handl...

CopyFail-Exploits-CVE-2026-31431

CVE-2026-31431 — Copy Fail Educational repository with multi-language implementations of the Copy Fail exploit. Created and maintained by @shotafry — because reading the CVE is not enough. You have to reproduce it. 📖 Leer en Español Table of Contents What is Copy Fail? Who discovered it? Severity...

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...