Preliminary research

Unauthenticated RCE in Taskcluster via a GraphQL filter reaching sift's `$where`

griffinf · HackerOne

AI-collected research leads through 6 October 2026, including bounded month-by-month reviews of selected social and community sources from January through September. Unranked, incomplete, not community-vetted, and subject to change.

Traces an anonymous Taskcluster GraphQL filter into sift’s JavaScript-evaluating $where operator. The report identifies a scope that guarantees nonempty input and uses propagated error text to observe service-side execution, illustrating how API reachability and collection behavior expose an established injection sink.

Record

Researcher

griffinf

Published by

HackerOne

In the archive

• Collected in the 2026 preliminary research sweep

Tags

• graphql
• nodejs
• nosqli
• injection
• rce
• bug-bounty
• case-study
• owasp-a03-2021

This page is the archive's own catalogue record. The research is the work of griffinf, first published at the original source. Preserved copies are kept so the citation survives its host.