CVE-2026-46440

Name: CVE-2026-46440
Creator: NVD / NIST
Published: 2026-06-08T16:16:41.043+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.1/10EPSS 0.25%

Last modified Jun 17, 2026

CVE-2026-46440 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. Flowise is a drag & drop user interface to build a customized large language model flow. Prior to version 3.1.2, the checkBasicAuth endpoint validates credentials in plaintext without rate limiting and with direct comparison. EPSS estimates a 0.25% chance of exploitation in the next 30 days.

Description

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to version 3.1.2, the checkBasicAuth endpoint validates credentials in plaintext without rate limiting and with direct comparison. This issue has been patched in version 3.1.2.

Metrics

CVSS 3.1

9.1/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CVSS 3.0

7.5/10

CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Probability

0.25%

16.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-522

Affected Software

Vendor	Product	Versions
Flowiseai	Flowise	< 3.1.2

References

https://github.com/FlowiseAI/Flowise/releases/tag/flowise%403.1.2Product, Release Notes
https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-php6-83fg-gw3gMitigation, Vendor Advisory
https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-php6-83fg-gw3gMitigation, Vendor Advisory

Timeline

Published: Jun 8, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-46440?

How severe is CVE-2026-46440?

CVE-2026-46440 has a CVSS score of 9.1/10 (CRITICAL severity). The EPSS model estimates a 0.25% probability of exploitation in the next 30 days.

How do I fix CVE-2026-46440?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-46440?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST