CVE-2026-70472

Flowise: Cross-workspace credential IDOR in openai-assistants-vector-store

HIGH
8.8
CVSS Score
Published: August 4, 2026 at 05:46 PM UTC
Updated: October 24, 2026 at 03:10 PM UTC
1 product affected across 1 vendorFlowise

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Severity
HIGH8.8
Exploit prediction
EPSS 0.5%
SSVC
PoC

Description

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.3, Flowise openai-assistants-vector-store endpoints accept a client-controlled credential parameter and load credentials by id without checking whether that credential belongs to the caller workspace. Route permissions assistants:* only check feature access. The controller passes req.query.credential straight to the service, and the service uses findOneBy({ id: credentialId }), decrypts the credential, and calls OpenAI APIs without a workspaceId check. If an attacker knows another workspace credentialId, the attacker can use that workspace OpenAI key, read, modify, or delete victim vector stores and files, cause billing impact on the victim OpenAI account, and violate multi-tenant boundaries. This issue is fixed in version 3.1.3.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 3.1.3
Affected range stops below 3.1.3, so it looks safe — our inference, not a vendor statement

References (4)

x_refsource_CONFIRMVendor Advisory
Source: cverecord
https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-chm3-vqcf-52rx
x_refsource_MISCIssue TrackingPatch
Source: cverecord
https://github.com/FlowiseAI/Flowise/pull/6170
x_refsource_MISCRelease Notes
Source: cverecord
https://github.com/FlowiseAI/Flowise/releases/tag/[email protected]

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-285CWE-863

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