cve-2026-31431

CVE-2026-31431 — Linux Kernel algifaead "Copy Fail": Analysis Security research on CVE-2026-31431 CVSS 3.1 7.8 HIGH , AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H: three composable design flaws in the AFALG AEAD interface chain into a deterministic, race-free 4-byte page-cache write at any offset of any...

CVE-2026-31431_SCA_WAZUH

Wazuh SCA policy: Copy Fail CVE-2026-31431 This policy file: copy-fail-cve-2026-31431-policy.yml is designed to detect likely exposure and mitigation status for Copy Fail / CVE-2026-31431. What this policy checks 1. algifaead is disabled via modprobe policy. 2. algifaead is not currently loaded. ...

copy-fail-go

Copy Fail - CVE-2026-31431 - golang version ⚠️ WARNING: This program is highly dangerous and experimental. Manual cleanup is required to clear the exploit. Use at your own risk! Technical Writeup original repo run check /usr/bin/su before run: user@pc:$ hexdump -n 300 -x /usr/bin/su 0000000 457f...

CVE-2026-31431-poc

Copy Fail Command PoC Wrapper A small modified proof-of-concept wrapper for Copy Fail / CVE-2026-31431 that allows passing a custom command from the terminal instead of always launching an interactive root shell so it can be ran in an none interactive environment such as a web shell. This project...

copy-fail-zig

Copy Fail CVE-2026-31431 Zig implementation Zig implementation of the 732 Byte proof of concept for the Copy Fail Linux LPE CVE-2026-31431, which was disclosed by Theori / Xint on April 29th 2026 The writeup can be found at copy.fail. This implementation has no runtime dependencies and can be run...

CVE-2026-31431-Copy-Fail

This repository does not have a README...

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...

copy-fail-CVE-2026-31431

Copy Fail - CVE-2026-31431 Technical Writeup Tested Distro / Version Distro| Version ---|--- Ubuntu 24.04 LTS| 6.17.0-1007-aws Amazon Linux 2023| 6.18.8-9.213.amzn2023 RHEL 10.1| 6.12.0-124.45.1.el101 SUSE 16| 6.12.0-160000.9-default...

mks-copy-fail-mitigation

Copy Fail Mitigation DaemonSets DaemonSets for fixing vulnerabilities of the Copy Fail family on all worker nodes of MKS clusters. Contents CVE-2026-31431 Copy Fail CVE-2026-43284, CVE-2026-43500, CopyFail2 Dirty Flag CVE-2026-31431 Copy Fail Vulnerability Description CVE ID: CVE-2026-31431 CVE...

copyfail2_electric_boogaloo_fix

copyfail2electricboogaloofix A temporary mitigation against copyfail variant copyfail2electricboogaloo - Unprivileged Linux LPE via xfrm ESP-in-UDP MSGSPLICEPAGES no-COW fast path. Page-cache write into any readable file. Overwrites a nologin line in /etc/passwd with sick::0:0:…:/:/bin/bash and s...

linux-kernel-algif-aead-checker

CVE-2026-31431 / Copy Fail Checker 🔒 Linux kernel vulnerability checker for the algifaead-based Copy Fail attack path. Detects if your system is vulnerable and provides mitigation steps. Features Kernel version vulnerability range detection AFALG crypto module check Protection status KPTI, SELinu...

CVE-2026-31431

CVE-2026-31431 Copy Fail Local Privilege Escalation Copy Fail is a new Linux kernel zero-day that allows any authenticated user to gain root privileges Local Privilege Escalation, or LPE on almost every Linux distribution since 2017. An easy-to-use exploit is already public. Vulnerable list of...

copy-fail-checker

Copy Fail Checker — CVE-2026-31431 A small, dependency-light Bash script that tells you whether your Linux system is exposed to the Copy Fail local privilege-escalation vulnerability CVE-2026-31431. The script is read-only : it never exploits the bug, never loads kernel modules, and never modifie...

CVE-2026-31431-Copy-Fail

CVE-2026-31431 Copy Fail Pre-compiled exploit for CVE-2026-31431 Copy Fail. Original source code from tgies/copy-fail-c, with i386 x8632 build target added. Vulnerability discovery and original PoC by theori-io/copy-fail-CVE-2026-31431. Canonical writeup: copy.fail. Build make glibc static build...

copyfail-alpine

This is a more minimal port of Copy Fail LPE CVE-2026-31431 which patches the first few bytes of /etc/passwd so that su-ing to root requires no password. This reduces the total size of the original exploit and makes it more portable. Distributions like Alpine use busybox/musl instead of a...

copy-fail-CVE-2026-31431

This repository does not have a README...

CVE-2026-31431

CVE-2026-31431 — Copy Fail tracking site Source for the Copy Fail patch-status tracker: a single-page site recording which distributions have shipped a fix for the algifaead privilege escalation in the Linux kernel. Where the facts live Everything about the bug — CVE IDs, affected and fixed...

copy-fail-check

copy-fail-check CVE-2026-31431 Helper based on https://copy.fail/ Copy Fail Quick Check Interactive bash helper to review basic exposure related to CVE-2026-31431 Copy Fail and apply a temporary mitigation based on algifaead. Target compatibility Mainly intended for: Debian / Ubuntu AlmaLinux /...

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...

copy-fail-tiny-elf-CVE-2026-31431

Copy Fail Tiny ELF - CVE-2026-31431 Minimal 436-bytes exploit for Copy Fail, thanks to the power of golfing Magic This ELF ultra golfs the exploit by being totally unmapped, rwx, and by using itself conditionally as the ELF payload to use to poison the cache. More cursed ELF internals golfs comin...