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OpenAdvisories
High · 7.7 CVE-2026-61644 EUVD-2026-44677

FastGPT: /api/core/chat/record/getCollectionQuote can disclose cross-tenant dataset text due to an unbound initialId lookup

Published Jul 15, 2026 · Updated Jul 15, 2026 · Assigned by GitHub_M

Description

FastGPT is a knowledge-based AI application platform. From 4.14.17 until 4.15.0-beta5, the POST /api/core/chat/record/getCollectionQuote endpoint authenticates the caller's chat and collection context, but the initialId center-node lookup is not bound to that authorized context. A low-privileged tenant user can call the endpoint with valid attacker-owned appId, chatId, chatItemDataId, and collectionId values while supplying another tenant's dataset data id as initialId, causing the response to include foreign dataset quote or full-text content. This issue is fixed in version 4.15.0-beta5.

Affected products

VendorProductAffectedFixed
labring FastGPT >= 4.14.17, < 4.15.0-beta5 —

References