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:...

DirtyFrag-for-dummies

Dirty Frag / CVE-2026-43284 — Research Notes Overview This repository contains a cleaned-up technical diagram and supporting notes for the Linux kernel vulnerability commonly referred to as Dirty Frag and tracked for the xfrm-ESP path as CVE-2026-43284. The issue belongs to the broader Dirty Frag...

cve-2026-31431-mitigation

CVE-2026-31431 seccomp Mitigation A lightweight, reversible seccomp-based mitigation for CVE-2026-31431, a local privilege escalation vulnerability in the Linux kernel's algifaead / authencesn crypto subsystem. 中文文档 Vulnerability Overview Type: Local Privilege Escalation LPE Affected Component:...

dirtypipe

reF: https://access.redhat.com/security/vulnerabilities/RHSB-2022-002 Diagnose A vulnerability detection script has been developed to determine if your system is currently affected by this flaw. To verify the authenticity of the script, you can download the detached OpenPGP signature as well...

CVE-2026-43284-dirtyfrag-detection

DirtyFrag CVE-2026-43284 PoC Validation and auditd Detection Scope: Linux Local Privilege Escalation LPE validation focused on the XFRM/ESP path associated with CVE-2026-43284. This repository contains an English report and evidence artifacts from a controlled laboratory validation of the public...

copyfail-exploit

Copy Fail · CVE-2026-31431 Local privilege escalation on Linux kernels from 4.11 up to but not including the patched 6.18 releases. The bug lives in the kernel's AFALG socket interface—specifically how authencesn handles scatter-gather lists during in‑place AEAD decryption. The result: an...

copyfail-check

copyfail-check Shell scripts to detect Linux kernel vulnerabilities, check mitigation status, and guide remediation — designed to run locally or across fleets via SSH, Ansible, or pssh. CVE-2026-31431 — Copy Fail Copy Fail is a high-severity local privilege escalation LPE vulnerability in the Lin...

CVE-2026-31431

CopyFail2 CVE-2026-31431 - Python Implementation Python port of the CopyFail2 kernel exploit leveraging xfrm ESP-in-UDP MSGSPLICEPAGES no-COW fast path for unprivileged Linux local privilege escalation. Replaces a nologin/false entry in /etc/passwd with a passwordless uid-0 user and drops into a...

copy-fail-CVE-2026-31431-poc

CVE-2026-31431 — Copy Fail Proof of Concept This repository contains a Proof of Concept exploit for CVE-2026-31431 , a high-severity Linux kernel local privilege escalation vulnerability that allows any unprivileged local user to gain root access. The flaw, dubbed “Copy Fail”, resides in the...

CVE-2026-31431

CVE-2026-31431 - Copy Fail Copy Fail is a logic bug in the Linux kernel's crypto subsystem CVE-2026-31431. A 2017 optimization in algifaead.c accidentally placed page cache pages into a writable scatterlist. The authencesn AEAD algorithm writes 4 scratch bytes past the output boundary during...

COPY-FAIL-Detection-with-Wazuh-4.14.4

COPY FAIL Detection with Wazuh 4.14.4 - CVE-2026-31431 Detection engineering for the Copy Fail kernel LPE · Ubuntu / RHEL / SUSE / Amazon Linux 2023 / Kali What is Copy Fail? CVE-2026-31431 is a logic bug in the Linux kernel's authencesn cryptographic template. It allows any unprivileged local us...

copyfail

Overview Copy Fail CVE-2026-31431 is a logical vulnerability in the Linux kernel that allows a local unprivileged user to escalate privileges to superuser root. The vulnerability belongs to the Local Privilege Escalation LPE class, does not require complex exploitation conditions such as race...

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-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-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:...

CVE-2026-31431

🔐 CVE-2026-31431 - Kernel Exploitation Research Framework Modular framework for studying a Linux privilege escalation LPE vulnerability based on AFALG + Page Cache Injection techniques. 🎯 Objective This project is designed for: Research of Linux kernel vulnerabilities Teaching real exploitation...

CVE-2022-0847-POC

CVE-2022-0847 CREDITS: vulnerability author: Max Kellermann max kellermann explanation: https://dirtypipe.cm4all.com/ RESOURCES: PAGE CACHE: https://manybutfinite.com/post/page-cache-the-affair-between-memory-and-files/ PIPE:...

copy-fail-CVE-2026-31431-IOC

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...

CVE-2026-31431-live-code-corruption

CVE-2026-31431 — Live Code Corruption via Page Cache A novel exploitation technique for CVE-2026-31431 "Copy Fail" that corrupts executable code of running processes through the Linux kernel's page cache, achieving root privilege escalation. What's Different All published exploits for this CVE...

ubuntu-cve-2026-31431-mitigation

Complete Guide to Updating the Kernel and kmod in Ubuntu to Fix Security Vulnerabilities CVE CVE-2026-31431 This vulnerability, also known as Copy Fail, is a logic bug in the Linux kernel that occurs in the AFALG / algifaead path. According to the discloser, an unprivileged local user can cause t...