Root cause
Dependency resolution crossed the intended boundary between internal Ruby packages and a public package source.
Demonstrated impact
The researcher observed code execution across multiple service contexts. The disclosed account does not establish a broader compromise beyond those observations.
Lessons for review
- Define explicit package sources and reserve internal namespaces where applicable.
- Treat build and developer environments as separate trust zones and minimize their credentials.
Award and evidence
USD 20,000Bug Bounty · Researcher Reported
The researcher states this was a critical report and that the bounty was paid; no separate payment date or public HackerOne report is supplied.
Primary public source read; award distinguished from program maximums and aggregate earnings. No vulnerability testing performed.
- The reward is an actual award reported in a primary researcher account; payment settlement was not independently audited.
Recorded timeline
- Published
- 2025-10-28url_date · Date encoded in the researcher publication permalink; earliest disclosure elsewhere was not independently established.
- Public Disclosure
- 2025-10-28url_date · Date encoded in the researcher publication permalink; earliest disclosure elsewhere was not independently established.
- Reported
- 2025-09-01inferred · The timeline supplies September 1; year is inferred from the 2025 publication context.
- Awarded
- 2025-10-21inferred · The timeline supplies October 21; year is inferred from the 2025 publication context.
Sources and provenance
- Vibecoding my way to a crit on Github Furbreeze · reviewed 2026-10-04
Record reviewed 2026-10-04. Snapshot 53796974ace8. Open the complete JSON contract.