FlowiseAI Flowise arbitrary file upload vulnerability

published 2025-03-04 20 mo ago modified 2026-09-30 39 d ago also GHSA-69jq-qr7w-j7qh , EUVD-2025-6168

cvss: 9.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 55.9%; EPSS 55.9% chance of exploitation in 30 days, percentile 99%
public exploits: 0; none known, plus a Nuclei check

FlowiseAI Flowise v2.2.6 was discovered to contain an arbitrary file upload vulnerability in /api/v1/attachments.

Patch / fix

links 1

github.com/dorattias/CVE-2025-26319 advisory

CISA SSVC

Exploitation: Proof of concept is public
Automatable: yes
Technical impact: total
Assessed: 20 mo ago (2025-03-05)

Exploit prediction

55.87% chance of exploitation in the next 30 days, higher than 99% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

Nuclei template FlowiseAI Flowise <= 2.2.6 - Arbitrary File Upload nuclei detection template
github.com https://github.com/dorattias/CVE-2025-26319 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem	package	affected	fixed in
npm	flowise	<=2.2.6	no fix listed

Classification

Weakness

CWE-434 Unrestricted Upload of File with Dangerous Type

References

github.com /dorattias/CVE-2025-26319
exploit, web, patch, third-party-advisory
nvd.nist.gov /vuln/detail/CVE-2025-26319
advisory
github.com /FlowiseAI/Flowise
package
github.com /FlowiseAI/Flowise/blob/flowise-ui%402.2.6/packages/server/src/index.ts#L165-L190
web

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary