CVE-2026-31431 — Educational PoC

Disclaimer

This repository is provided solely for educational, research, and defensive security purposes.

The code demonstrates the technical mechanism behind CVE-2026-31431 in a controlled laboratory environment. It is intended to help security researchers, developers, and students understand the vulnerability and verify mitigations.

The author does not encourage or authorize the use of this code against systems, networks, or software without the explicit permission of their owners.

Purpose

This project contains an independent implementation created from publicly available information about CVE-2026-31431.

The repository is intended to:

• demonstrate the vulnerability mechanism;
• reproduce the issue in a controlled environment;
• assist in studying the vulnerability;
• verify fixes and mitigations.

This is not intended to be a general-purpose exploitation framework.

Repository Contents

• target_src/ — vulnerable demonstration application created for laboratory testing.
• payload_src/ — demonstration payload used only to illustrate the vulnerability mechanism.
• README.md — project documentation.

Laboratory Use Only

This project is designed to be executed only in isolated laboratory environments that you own or are explicitly authorized to test.

Running this code against third-party systems without authorization may violate applicable laws, regulations, or contractual obligations.

Responsible Use

Users are solely responsible for ensuring that they comply with all applicable laws and obtain any necessary authorization before performing security testing.

The author accepts no responsibility for misuse of this software.

License

This project is provided for research and educational purposes. By using this repository, you agree that you are solely responsible for how the software is used.

Bootstrup

./auto_exploit.sh

target

dump

objdump -d ./target/target

shell code

objdump -d /target/target | grep -oP '\s([0-9a-f]{2}\s)+' | tr -d ' \n' | sed 's/../\x&/g'

payload

dump

objdump -d ./payload/payload.o

shell code

hexdump -v -e '"\x" 1/1 "%02x"' ./payload/payload.bin

objdump -d ./payload/payload.o | grep -oP '\s([0-9a-f]{2}\s)+' | tr -d ' \n' | sed 's/../\x&/g'