What is CVE-2026-45314?

CVE-2026-45314 is a medium-severity vulnerability in Open-webui, classified under Improper Neutralization of Alternate XSS Syntax. CVSS score: 6.1/10. Published 2026-05-15.

How severe is CVE-2026-45314?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Open-webui

CVE-2026-45314

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.3, the channel webhook create/update flow accepts arbitrary profile_image_url values, including data:image/svg+xml;base64,... p…

EPSS: 0.000 (1.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Open-webui — versions < 0.9.3
Openwebui Open_webui

Weakness classification (CWE)

CWE-87 — Improper Neutralization of Alternate XSS Syntax

References

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

Frequently asked questions

What is CVE-2026-45314?: CVE-2026-45314 is a medium-severity vulnerability in Open-webui, classified under Improper Neutralization of Alternate XSS Syntax. CVSS score: 6.1/10. Published 2026-05-15.
How severe is CVE-2026-45314?: Medium severity. CVSS v3 base score is 6.1 out of 10.