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.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
None
No data modification
Availability
None
No disruption
CVSS Vector v3.1
Weakness Type (CWE)
References 4
https://github.com/labring/FastGPT/commit/0c1840c7773c5be5d777f86228651479e0215…
security-advisories@github.com
https://github.com/labring/FastGPT/pull/7173
security-advisories@github.com
https://github.com/labring/FastGPT/releases/tag/v4.15.0-beta5
security-advisories@github.com
https://github.com/labring/FastGPT/security/advisories/GHSA-mmg6-2g54-j896
security-advisories@github.com