CVE-2026-56276 | BDVDB-2026-341867 Detail

FlowiseFlowise

Description#

Flowise before 3.1.2 contains a mass assignment vulnerability in the PUT /api/v1/user endpoint that allows authenticated users to directly modify the credential field without validation. Attackers can bypass password change verification and session invalidation by supplying a crafted password hash, establishing persistent account access after temporary session compromise.

Impact#

Per CVSS v4.0: confidentiality impact none, integrity impact high, availability impact none. Attack vector: network.

Weaknesses#

CWE-915 Improperly Controlled Modification of Dynamically-Determined Object Attributes

References#

Exploit#

No public exploit known

History#

Version 12026-06-20Record published in the CVE List.
Version 22026-11-08Most recent update recorded in the CVE List.

Published

Published: 2026-06-20
Last modified: 2026-11-08

Vendor information

Vendor: Flowise
Product: Flowise

All Flowise vulnerabilities

Score

6.0 Medium

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 30.7.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Not classified

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
< 3.1.2
Fixed
3.1.2
Vulnerable
Not stated
Fixed
3.1.2

Scoring System

CVSS v4.0

6.0 Medium

CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

Metric breakdown
Attack Vector	Network
Attack Complexity	High
Attack Requirements	None
Privileges Required	Low
User Interaction	None
Vulnerable System Confidentiality	None
Vulnerable System Integrity	High
Vulnerable System Availability	None
Subsequent System Confidentiality	None
Subsequent System Integrity	None
Subsequent System Availability	None

CVSS v3.1

Not available

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).