What is CVE-2026-41266?

CVE-2026-41266 is a high-severity vulnerability in Flowiseai Flowise, classified under Information Disclosure. CVSS score: 7.5/10. Published 2026-04-23.

How severe is CVE-2026-41266?

High severity. CVSS v3 base score is 7.5 out of 10.

Auth bypass in Flowiseai Flowise

CVE-2026-41266

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.0, /api/v1/public-chatbotConfig/:id ep exposes sensitive data including API keys, HTTP authorization headers and internal configuration w…

Vulnerability class: Information Disclosure

EPSS: 0.003 (26.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Flowiseai Flowise — versions < 3.1.0

Weakness classification (CWE)

CWE-200 — Information Disclosure
CWE-522 — Insufficiently Protected Credentials
CWE-862 — Missing Authorization

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)

Frequently asked questions

What is CVE-2026-41266?: CVE-2026-41266 is a high-severity vulnerability in Flowiseai Flowise, classified under Information Disclosure. CVSS score: 7.5/10. Published 2026-04-23.
How severe is CVE-2026-41266?: High severity. CVSS v3 base score is 7.5 out of 10.