High severity · published Jul 15, 2026
CVE-2026-61644
FastGPT: /api/core/chat/record/getCollectionQuote can disclose cross-tenant dataset text due to an unbound initialId lookup
7.7
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 24% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FA
FastGPT · labring
>= 4.14.17, < 4.15.0-beta5 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-61644
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-61644
github.com
https://github.com/labring/FastGPT/commit/0c1840c7773c5be5d777f86228651479e02155db
github.com
https://github.com/labring/FastGPT/pull/7173
github.com
https://github.com/labring/FastGPT/releases/tag/v4.15.0-beta5
github.com
https://github.com/labring/FastGPT/security/advisories/GHSA-mmg6-2g54-j896
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