CVE-2026-91937

HighCVSS 7.5/10Last modified Sep 23, 2026

Description

Flowise before 3.1.4 fails to sanitize the overrideConfig.sessionId parameter before using it in MongoDB queries within the MongoDBMemory node. Unauthenticated attackers can submit MongoDB operator objects through the prediction API to read chat history records belonging to other users from the shared collection.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-943

Affected software

Vendor	Product	Versions
FlowiseAI	Flowise	< 3.1.4

References

Timeline

Published: Sep 15, 2026
Last modified: Sep 23, 2026
NVD status: Deferred

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