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GitHub Security Lab open-sources an autonomous fuzzing pipeline

2026-09-25 · that day's edition · one of the five

The Taskflow agent writes harnesses, runs AFL++, triages crashes and drafts vulnerability reports end to end.

Quoted from github.blog on 2026-09-25: it identifies the suitable entrypoints, analyzes the build system, writes the harnesses,… (cut at a sentence end) Quoted from github.blog, checked 2026-09-25. “ it identifies the suitable entrypoints, analyzes the build system, writes the harnesses, runs AFL++, reads the coverage reports, improves the harnesses ...…” quoted from github.blog · checked 2026-09-25
github.blog, quoted / AI-powered fuzzing with the GitHub Security Lab Taskflow agent · source · Quoted under the quotation exception; no licence granted

GitHub Security Lab published the Fuzzing Taskflow on September 24, 2026: an autonomous pipeline that generates fuzz harnesses, runs AFL++ fuzzing campaigns, analyses coverage, triages crashes and writes vulnerability reports with suggested fixes. The pipeline uses Claude Sonnet 5 as its default model, and its source is published at github.com/GitHubSecurityLab/seclab-taskflows-fuzzing. GitHub warns it should run only inside a disposable environment without elevated privileges, because of the risk of arbitrary command execution.

What this rests on

  1. GitHub Security Lab published the Fuzzing Taskflow, an autonomous pipeline that generates fuzz harnesses, runs AFL++ campaigns, triages crashes, and writes vulnerability reports with suggested fixes, on September 24, 2026

    AI-powered fuzzing with the GitHub Security Lab Taskflow agent · GitHub · 2026-09-24

  2. The pipeline uses Claude Sonnet 5 as its default model

    AI-powered fuzzing with the GitHub Security Lab Taskflow agent · GitHub · 2026-09-24

  3. The source code is published at github.com/GitHubSecurityLab/seclab-taskflows-fuzzing and is open source

    AI-powered fuzzing with the GitHub Security Lab Taskflow agent · GitHub · 2026-09-24

  4. GitHub warns the agent should run only inside a disposable environment without elevated privileges, due to arbitrary command execution risk

    AI-powered fuzzing with the GitHub Security Lab Taskflow agent · GitHub · 2026-09-24

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