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Show HN: Copy-fail-C – portable C port of CVE-2026-31431, with a checker
A highly portable, C-based re-implementation of a critical security vulnerability PoC, enabling compilation and execution across any architecture supported by nolibc, removing Python and x86_64 shellcode dependencies.
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AI Executive Synthesis
A highly portable, C-based re-implementation of a critical security vulnerability PoC, enabling compilation and execution across any architecture supported by nolibc, removing Python and x86_64 shellcode dependencies.
Copy-fail-C addresses a critical need in cybersecurity: the ability to reliably test and verify vulnerabilities across diverse hardware architectures. By porting a significant PoC (CVE-2026-31431) from Python/x86_64 shellcode to portable C with `nolibc`, the author significantly enhances its utility for security researchers and developers. This eliminates environmental dependencies and architecture-specific limitations, enabling broader testing and validation of the vulnerability. The market implication is improved security posture through more comprehensive testing capabilities. This project highlights the ongoing demand for low-level, highly portable security tools that can operate in varied and constrained environments, crucial for robust vulnerability assessment and patch verification in enterprise and embedded systems.
This is a C port of Theori/Xint's Copy Fail PoC (https://copy.fail/, 2026-04-29). The original depended on Python and embedded x86_64 shellcode. I managed to reimplement the shellcode as portable C using nolibc borrowed from the kernel, and now the whole thing can be compiled for & works on any arch supported by nolibc.
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Deep-Dive FAQs
What is Copy-fail-C – portable C port of CVE-2026-31431, with a checker?
Copy-fail-C – portable C port of CVE-2026-31431, with a checker is analyzed by our AI as: A highly portable, C-based re-implementation of a critical security vulnerability PoC, enabling compilation and execution across any architecture supported by nolibc, removing Python and x86_64 shellcode dependencies.. It focuses on Copy-fail-C addresses a critical need in cybersecurity: the ability to reliably test and verify vulnerabilities across diverse hardware architectur...
Where did Copy-fail-C – portable C port of CVE-2026-31431, with a checker originate?
Data for Copy-fail-C – portable C port of CVE-2026-31431, with a checker was aggregated directly from the Hacker News community ecosystem, representing raw developer and early-adopter sentiment.
When was Copy-fail-C – portable C port of CVE-2026-31431, with a checker publicly launched?
The initial public indexing or launch date for Copy-fail-C – portable C port of CVE-2026-31431, with a checker within our tracked developer communities was recorded on May 1, 2026.
How popular is Copy-fail-C – portable C port of CVE-2026-31431, with a checker?
Copy-fail-C – portable C port of CVE-2026-31431, with a checker has achieved measurable traction, logging over 2 traction score and facilitating 0 recorded discussions or engagements.
Which technical categories define Copy-fail-C – portable C port of CVE-2026-31431, with a checker?
Based on metadata extraction, Copy-fail-C – portable C port of CVE-2026-31431, with a checker is categorized under topics such as: C port, CVE-2026-31431, Copy Fail PoC, portable C.
What are some commercial alternatives to Copy-fail-C – portable C port of CVE-2026-31431, with a checker?
Our semantic intelligence engine identifies potential commercial alternatives in the SaaS space, such as CC-BEEPER, which offers overlapping value propositions.
How does the creator describe Copy-fail-C – portable C port of CVE-2026-31431, with a checker?
The original author or development team describes the product as follows: "This is a C port of Theori/Xint's Copy Fail PoC (https://copy.fail/, 2026-04-29). The original depended on Python and embedded x86_64 shellcode. I managed to reimplement the shellcode as portable C..."
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Discovery Source
Hacker News Aggregated via automated community intelligence tracking.
Tech Stack Dependencies
No direct open-source NPM package mentions detected in the product documentation.
Media Tractions & Mentions
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Deep Research & Science
No direct peer-reviewed scientific literature matched with this product's architecture.