EUVD-2026-68876
GHSA-5ph8-357j-4hx6
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Network-accessible unauthenticated API with trivial complexity; impact limited to reading chat history titles with no integrity or availability effect.
Primary rating from Vendor (mitre).
CVSS VectorVendor: mitre
Lifecycle Timeline
4DescriptionCVE.org
FastGPT Community Edition 4.10.0 through 4.14.0 are vulnerable to a NoSQL injection in the POST /api/core/chat/getHistories endpoint. An unauthenticated attacker can inject malicious NoSQL operators via crafted JSON payloads to bypass authorization checks, resulting in unauthorized access to chat history titles of all users across the platform.
AnalysisAI
NoSQL injection in FastGPT Community Edition 4.10.0-4.14.0 allows unauthenticated remote attackers to bypass authorization on the POST /api/core/chat/getHistories endpoint by embedding MongoDB operators in crafted JSON payloads, exposing chat history titles for all users across the platform. A public proof-of-concept repository (ExploreIO/CVE-2026-79483-FastGPT-NoSQL-Injection) exists, materially lowering the exploitation bar. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The POST /api/core/chat/getHistories API endpoint must be network-reachable - the default in publicly deployed FastGPT instances. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 vector AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N (5.3 Medium) accurately captures the technical parameters: network-accessible, trivial complexity, no authentication, no user interaction. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | No specific patched release version is identified in the available reference data; administrators should monitor https://github.com/labring/FastGPT for a security release and upgrade as soon as one is published. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same technique Authentication Bypass
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External POC / Exploit Code
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