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Kitploit
Kitploit
added 2026/09/17 1:48 a.m.9 views

CVE-2026-31431-CopyFail-Lab

CVE-2026-31431 "Copy Fail" — Linux Kernel LPE Lab Overview This repository documents a complete lab investigation of CVE-2026-31431 Copy Fail , a high-severity local privilege escalation LPE vulnerability in the Linux kernel's algifaead cryptographic module, disclosed on April 29, 2026. CVSS Scor...

7.8CVSS6.7AI score0.99907EPSS
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Kitploit
Kitploit
added 2026/09/17 1:48 a.m.9 views

cve-2026-31431-detection

CVE-2026-31431 "Copy Fail" — Defensive Detection Package A production-ready collection of detection rules and triage guidance for CVE-2026-31431, a Linux kernel local privilege escalation in the algifaead crypto interface disclosed by Theori Xint Code Research. The vulnerability exploits an...

7.8CVSS6.6AI score0.99907EPSS
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Kitploit
Kitploit
added 2026/09/17 1:47 a.m.10 views

CVE-2026-31431

Test, patch, fix: CVE-2026-31431 root@kitploit: Test:Check vuln python3 -c 'import socket;exec"try:s=socket.socketsocket.AFALG,socket.SOCKSEQPACKET,0;s.bind"aead","authencesnhmacsha256,cbcaes";print"vulnerable"\nexcept:print"not vulnerable""' root@kitploit: check if module Check if module...

7.8CVSS6.7AI score0.99907EPSS
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Kitploit
Kitploit
added 2026/09/17 1:44 a.m.30 views

Copy-Fail-Exploit-CVE-2026-31431

Copy Fail CVE-2026-31431 – Exploit Usage Guide ⚠️ Disclaimer This content is for educational and authorized security testing purposes only. Do NOT run this on systems without explicit permission. 📌 Overview Copy Fail CVE-2026-31431 is a Linux Local Privilege Escalation LPE vulnerability affecting...

7.8CVSS6.8AI score0.99907EPSS
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Kitploit
Kitploit
added 2026/09/17 1:43 a.m.6 views

copy-fail-mitigate-no-reboot

copy-fail-mitigate Minimal no-reboot mitigation helper for Copy Fail / CVE-2026-31431. This script disables the vulnerable algifaead module path and attempts to unload the module immediately. It also performs a best-effort page-cache eviction for /usr/bin/su. This is a mitigation, not a kernel fi...

7.8CVSS6.7AI score0.99907EPSS
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Kitploit
Kitploit
added 2026/09/17 1:42 a.m.8 views

copyfailautopatch

copyfailautopatch Detect and optionally mitigate CVE-2026-31431 "Copy Fail" on a Linux host. The vulnerability is a page-cache write primitive reachable through the AFALG socket family using the authencesnhmacsha256,cbcaes AEAD transform. This script reproduces the same primitive Theori...

7.8CVSS6.5AI score0.99907EPSS
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Kitploit
Kitploit
added 2026/09/17 1:42 a.m.10 views

CVE-2026-31431

CVE-2026-31431 — "Copy Fail" Local Privilege Escalation Overview CVE-2026-31431 is a local privilege escalation vulnerability in the Linux kernel's algifaead subsystem. The authencesn AEAD implementation performs an in-place decrypt via splice2, placing a page-cache page into the destination...

7.8CVSS6.7AI score0.99907EPSS
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Kitploit
Kitploit
added 2026/09/17 1:04 a.m.10 views

dirty-frag-check

Dirty Frag check CVE-2026-43284 / CVE-2026-43500 Read-only checker for the "Dirty Frag" Linux kernel local-root vulns CVE-2026-43284, CVE-2026-43500. Checks kernel version, module state, KernelCare livepatch, and any modprobe blacklist you've added. Doesn't run exploit code. Companion to...

8.8CVSS7.3AI score0.93235EPSS
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Kitploit
Kitploit
added 2026/09/17 1:01 a.m.10 views

CVE-2026-31431

CVE-2026-31431 - Copy Fail PoC 针对 CVE-2026-31431 的教育性质概念验证,该漏洞也被称为 Copy Fail ,是一个涉及 Linux 内核 AFALG / algifaead 加密接口的本地权限提升漏洞。 !WARNING 本仓库仅用于教育、防御以及经授权的安全研究目的。 请不要 在非您所有的系统上运行此代码,也不要在未获得明确书面许可的系统上运行。 未经授权的使用可能构成违法行为。 概述 CVE-2026-31431 是一个影响 Linux 内核加密子系统的本地权限提升漏洞。 该漏洞涉及通过 AFALG 接口暴露的 AEAD...

7.8CVSS6.7AI score0.99907EPSS
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Kitploit
Kitploit
added 2026/09/17 12:56 a.m.7 views

Copy-Fail_Detect_and_mitigate_CVE-2026-31431

Copy Fail - CVE-2026-31431 Detector and Mitigator Detect exposure to CVE-2026-31431 Copy Fail and optionally apply a host-level mitigation by disabling the algifaead kernel module on vulnerable systems. What this repo provides copyfail-check.sh — checks kernel patch status, runtime module exposur...

7.8CVSS6.9AI score0.99907EPSS
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Kitploit
Kitploit
added 2026/09/17 12:56 a.m.6 views

cve-2026-31431-fleet-remediator

CVE-2026-31431 Fleet Audit and Remediation Tool 中文说明 This project is a fleet-scale orchestrator for auditing and remediating CVE-2026-31431 on Linux hosts in enterprise/internal networks. Batch SSH login to multiple hosts Risk evidence collection and status classification Temporary mitigation...

7.8CVSS6.7AI score0.99907EPSS
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Kitploit
Kitploit
added 2026/09/17 12:51 a.m.11 views

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:...

7.8CVSS6.6AI score0.99907EPSS
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Kitploit
Kitploit
added 2026/09/17 12:51 a.m.9 views

copy-fail

Copy Fail PoC English Python PoC for CVE-2026-31431 , intended for controlled laboratory testing on authorized Linux systems. For use only in your own environments, labs, or systems where you have explicit permission. Do not run this code against third-party systems. Description copy-fail.py chec...

7.8CVSS6.7AI score0.99907EPSS
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Kitploit
Kitploit
added 2026/09/17 12:47 a.m.30 views

copyfail-rs

copyfail-rs CVE-2026-31431 Copy Fail 的 Rust 实现 — 通过 AFALG splice 实现的 Linux 内核页面缓存任意写入原语。 English README CVE-2026-31431 Linux 内核的 algifaead 实现允许非特权用户通过 splice 系统调用将任意数据写入任何可读文件的页面缓存。authencesn AEAD 算法将 seqnolo(用户控制的 AAD 字节 4-7)写入目标 scatterlist 的 assoclen + cryptlen 偏移处——当目标通过 splice...

7.8CVSS6.8AI score0.99907EPSS
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Kitploit
Kitploit
added 2026/09/16 11:59 p.m.9 views

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...

7.8CVSS6.4AI score0.99907EPSS
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Kitploit
Kitploit
added 2026/09/16 11:06 p.m.11 views

CVE-2026-31431

🚨 CVE-2026-31431: Copy Fail Un fallo crítico de 9 años en el kernel de Linux que permite obtener acceso root en segundos 📋 Resumen Ejecutivo Atributo| Detalles ---|--- CVE| CVE-2026-31431 Apodo| Copy Fail Tipo| Escalamiento de Privilegios Local LPE CVSS| 7.8 High Descubierto por| Theori Xint Code...

7.8CVSS6.5AI score0.99907EPSS
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Kitploit
Kitploit
added 2026/09/16 10:59 p.m.13 views

CVE-2026-31431-Report-Copy-fail-Vulnerability-

CVE-2026-31431 — Copy Fail: Linux Kernel Privilege Escalation Educational analysis of the Copy Fail vulnerability in the Linux kernel. Covers the memory corruption mechanism, privilege escalation flow, container escape, and defensive countermeasures. ⚠️ Disclaimer This repository is for educationa...

7.8CVSS7AI score0.99907EPSS
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Kitploit
Kitploit
added 2026/09/16 10:28 p.m.10 views

copyfail-guard

copyfail-guard 一个零依赖的 Python CLI 工具,用于检查 Linux 主机是否暴露于 CVE-2026-31431("Copy Fail")而无需运行漏洞利用程序 。 当受影响的组件可作为内核模块加载时,它还可以应用保守的临时缓解措施。 支持 Debian/Ubuntu、RHEL/Rocky/AlmaLinux、Fedora 和 SUSE。 root@kitploit: pip install copyfail-guard copyfail-guard 背景 CVE-2026-31431 是 algifaead(AFALG AEAD 套接字)内核接口中的一个逻辑缺...

7.8CVSS6.6AI score0.99907EPSS
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Kitploit
Kitploit
added 2026/09/16 10:25 p.m.19 views

CVE-2026-31431-Checker-Mitigator

CVE-2026-31431 Checker & Mitigator A simple, safe vulnerability scanner and mitigation tool for CVE-2026-31431 aka "Copy Fail", a local privilege escalation vulnerability in the Linux kernel's AFALG cryptographic interface. Note - It is fully vibe coded Script About the Vulnerability CVE :...

7.8CVSS6.8AI score0.99907EPSS
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Kitploit
Kitploit
added 2026/09/16 9:36 p.m.40 views

copyfail

CVE-2026-31431 — "Copy Fail" Safe Detection Script A read-only detection script for the Copy Fail Linux kernel local privilege escalation vulnerability. No exploit code. No AFALG socket opened. No files written outside /etc/modprobe.d only when you apply the mitigation manually. Background Copy...

7.8CVSS6.6AI score0.99907EPSS
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