CVE-2026-45301

Name: CVE-2026-45301
Creator: NVD / NIST
Published: 2026-05-15T22:16:53.837+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.1/10EPSS 0.27%

Last modified Jun 17, 2026

CVE-2026-45301 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.3.16, a missing permission check in all files related API endpoints allows any authenticated user to list, access and delete every file uploaded by every user to the platform. EPSS estimates a 0.27% chance of exploitation in the next 30 days.

Description

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.3.16, a missing permission check in all files related API endpoints allows any authenticated user to list, access and delete every file uploaded by every user to the platform. This vulnerability is fixed in 0.3.16.

Metrics

CVSS 3.1

8.1/10

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

EPSS Probability

0.27%

19.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-284

Affected Software

Vendor	Product	Versions
Openwebui	Open Webui	< 0.3.16

References

https://github.com/open-webui/open-webui/security/advisories/GHSA-r8wh-8m7r-fh33Exploit, Vendor Advisory
https://github.com/open-webui/open-webui/security/advisories/GHSA-r8wh-8m7r-fh33Exploit, Vendor Advisory

Timeline

Published: May 15, 2026
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2026-45301?

How severe is CVE-2026-45301?

CVE-2026-45301 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 0.27% probability of exploitation in the next 30 days.

How do I fix CVE-2026-45301?

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-2026-45301?

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

Scan your code now

Source: NVD / NIST