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...

cPanel-Fix

cPanel & kernel security helper One security-remediation.sh for CVE-2026-41940 cPanel, CVE-2026-31431 kernel "Copy Fail", CSF, optional domain/proxy cleanup, and optional operator hardening. Maintainer: Aria Jahangiri Far Clone git clone https://github.com/MrAriaNet/cPanel-Fix.git cd cPanel-Fix...

vcheck

vcheck Audit a remote Linux host over SSH for the Copy Fail and Dirty Frag kernel-module vulnerabilities and, optionally, apply mitigations: CVE| Name| Affected modules ---|---|--- CVE-2026-31431| Copy Fail| algifaead CVE-2026-43284| Dirty Frag IPsec| esp4, esp6, ipcomp4, ipcomp6, xfrmuser...

rootpacket-cve-2026-31431

rootpacket CVE-2026-31431 A Linux Docker-to-host cryptojacking toolkit captured from live attacks on Kinryū Labs honeypots. It breaks in through an exposed Docker Engine API, escapes the container to root the host with CVE-2026-31431 , installs a kernel rootkit, and runs an XMRig Monero miner. Fu...

copy-fail-CVE-2026-31431-cpp

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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-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 /...

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-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...

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...

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...

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...

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...

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-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...

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-CVE-2026-31431

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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...