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Informational 15 Bitcoin

Add fuzzing infrastructure (#3276)

Public commit record

What the developer wrote

Authored by Nishant Bansal

76/100 · Adequate
Add fuzzing infrastructure (#3276)

Add a fuzzing module based on Jazzer to allow fuzzing parts of eclair.
This commit includes fuzz tests for codecs to be used as examples.
It is a separate module (minimal interaction with the other modules).
We include helper scripts to run many fuzz tests in parallel or generate
reports.
✓ Descriptive subject✓ Provides detailed explanatory context✓ Mentions testing or verification✓ Links an issue, advisory, or supporting reference
The short version

What changed, and why it matters

This commit adds a new testing-only module that uses a fuzzing tool called Jazzer to automatically throw random data at Eclair's Lightning message parsers. It does not change any production code, network behavior, or security logic. It is purely a defensive testing improvement.

Recommended action

No security action required. Review the new module as normal build/test tooling. Ensure CI fuzzing jobs are time-bounded and do not block releases.

Security signals we found

01

New test-only fuzzing module added

02

No production code changes

03

No network-facing or cryptographic logic modified

04

Defensive testing infrastructure only

Risk score

Why this scored 15/100

Our methodology →
Potential impact 0/30
Exploitability 0/25
Stealth signal 0/15
Affected reach 0/15
Confidence 10/10
Evidence quality 5/5
Human-validated context

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