CVE-2026-61644
FastGPT: /api/core/chat/record/getCollectionQuote can disclose cross-tenant dataset text due to an unbound initialId lookup
CVSS Score
7.7
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-863 |
| Vendor | labring |
| Product | fastgpt |
| Published | Jul 15, 2026 |
| Last Updated | Jul 15, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
None
Availability
None
Affected Versions
labring / FastGPT
>= 4.14.17, < 4.15.0-beta5
References
github.com: https://github.com/labring/FastGPT/security/advisories/GHSA-mmg6-2g54-j896 github.com: https://github.com/labring/FastGPT/pull/7173 github.com: https://github.com/labring/FastGPT/commit/0c1840c7773c5be5d777f86228651479e02155db github.com: https://github.com/labring/FastGPT/releases/tag/v4.15.0-beta5