CVE-2026-28217 – IDOR in GraphQL userCollection Query Exposes Other Users’ Private Collections

CVE ID : CVE-2026-28217

Published : Feb. 26, 2026, 10:38 p.m. | 32 minutes ago

Description : hoppscotch is an open source API development ecosystem. Prior to version 2026.2.0, the `userCollection` GraphQL query accepts an arbitrary collection ID and returns the full collection data — including title, type, and the serialized `data` field containing HTTP requests with headers and potentially secrets — to any authenticated user, without verifying that the requesting user owns the collection. This is an Insecure Direct Object Reference (IDOR) caused by a missing authorization check that exists on every other operation in the same resolver. Version 2026.2.0 fixes the issue.

Severity: 0.0 | NA

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