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VulnerabilityPublished

CVE-2026-91937: FlowiseAI Flowise · Improper Neutralization of Special Elements in Data Query Logic

Affects FlowiseAI FlowiseSource CVE Database V5

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Not known to be exploited · CVSS 7.5 High : upgrade to 3.1.4 soon.

Data as of 30 Oct 2026, 20:25 UTC

CVSS 3.1 base score
7.5High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 40% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 3.1.4
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 15 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Upgrade Flowise and flowiseai/Flowise to 3.1.4.

Affected software

ProductAffectedFixed in
FlowiseAIFlowiseAffected
  • <3.1.4
Fixed in
  • 3.1.4
GitHubflowiseai/Flowisepkg:github/flowiseai/FlowiseOther threatsAffected
  • <3.1.4
Fixed in
  • 3.1.4

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Upgrade Flowise to version 3.1.4 or later, where this vulnerability has been fixed by properly sanitizing the overrideConfig.sessionId parameter before use in MongoDB queries. No other mitigations are specified.

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.

References

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