Vulnerability · Published Aug 4, 2026 · Assigned by GitHub_M

CVE-2026-70475Flowise: Missing Authorization on Execution Update Endpoint

High 7.1

In plain English

A high-severity missing authorization in Flowise from FlowiseAI. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 40% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 4.0)7.1High

Exploit odds (30 days)0.5%top 60.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.3, the PUT /api/v1/executions/:id endpoint in packages/server/src/routes/executions/index.ts lacks the checkAnyPermission() middleware that protects other execution endpoints. Any authenticated user, regardless of assigned permissions, can modify execution state, data, and metadata of any execution in their workspace, enabling privilege escalation and manipulation of workflow execution results. This issue is fixed in 3.1.3.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
npm	flowise	3.1.3	GHSA-fm2f-4339-4p2f

Affected products (as reported)

Vendor	Product	Versions
FlowiseAI	Flowise	< 3.1.2

Weakness: CWE-862 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

References

https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-fm2f-4339-4p2f x_refsource_CONFIRM
https://github.com/FlowiseAI/Flowise/pull/6409 x_refsource_MISC
https://github.com/FlowiseAI/Flowise/commit/96a9b23b5a103b362a0ee1368d04636755be1bed x_refsource_MISC
https://github.com/FlowiseAI/Flowise/releases/tag/flowise@3.1.3 x_refsource_MISC