High 7.7Published Jul 15, 2026

CVE-2026-61644FastGPT: /api/core/chat/record/getCollectionQuote can disclose cross-tenant dataset text due to an unbound initialId lookup

Updated under an hour ago (Oct 26, 2026, 9:30 AM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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: 7.7 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Weakness (CWE): CWE-863
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Jul 15, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

labring FastGPT labring:fastgpt (from the name)	from 4.14.17, < 4.15.0-beta5	CNA record

References

https://github.com/labring/FastGPT/security/advisories/GHSA-mmg6-2g54-j896x-refsource-confirm
https://github.com/labring/FastGPT/pull/7173x-refsource-misc
https://github.com/labring/FastGPT/commit/0c1840c7773c5be5d777f86228651479e02155dbx-refsource-misc
https://github.com/labring/FastGPT/releases/tag/v4.15.0-beta5x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.