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VulnerabilityPublished

CVE-2026-70473: FlowiseAI Flowise · Information Exposure

Affects FlowiseAI FlowiseSource CVE Database V5

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Not known to be exploited · CVSS 8.3 High : upgrade to 3.1.3 soon.

Data as of 2 Nov 2026, 22:58 UTC

CVSS 4.0 base score
8.3High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 39% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 3.1.3
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:L/SC:H/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 4 Aug 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 2 Nov 2026.

What to do

Upgrade Flowise and flowiseai/Flowise to 3.1.3.

Affected software

ProductAffectedFixed in
FlowiseAIFlowiseAffected
  • <3.1.3
Fixed in
  • 3.1.3
GitHubflowiseai/Flowisepkg:github/flowiseai/FlowiseOther threatsAffected
  • <3.1.3
Fixed in
  • 3.1.3

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

AI-suggested

This vulnerability is fixed in Flowise version 3.1.3. Users should upgrade to version 3.1.3 or later to remediate the issue. No vendor advisory is provided to indicate alternative mitigations or temporary fixes. Until upgraded, restrict access to the /api/v1/upsert-history endpoint to trusted users only and monitor for unusual access patterns.

Description

Flowise is a drag-and-drop user interface for building customized large language model (LLM) flows. Prior to 3.1.3, Flowise GET /api/v1/upsert-history returns the entire server-wide upsert history instead of being scoped to the requesting user, tenant, or workspace. The response can exceed 100MB and includes sensitive configuration data, including Vector Store settings such as Qdrant Server URL and collection name. The observed behavior indicates missing or insufficient authorization checks, workspace/project/tenant isolation, and pagination or limits, exposing integration parameters and infrastructure details that may enable further targeted attacks. This issue is fixed in version 3.1.3.

References

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