What is CVE-2026-54010?

CVE-2026-54010 is a high-severity vulnerability in Open-Webui, classified under Improper Access Control. CVSS score: 8.3/10. Published 2026-06-23.

How severe is CVE-2026-54010?

High severity. CVSS v3 base score is 8.3 out of 10.

Auth bypass in Open-Webui

CVE-2026-54010

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6, Open WebUI lets an authenticated user attach arbitrary file_id values to their own chat message without checking whether they own or can read those files. If the attacker then shares that chat and grants themselves read access, has_access_to_file() treats the victim file as accessible through the shared chat, and the file endpoints read or delete the victim file. This vulnerability is fixed in 0.9.6.

EPSS: 0.004 (35.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L.

Affected products

Open-webui — versions < 0.9.6
Openwebui Open_webui

Weakness classification (CWE)

References

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

Frequently asked questions

What is CVE-2026-54010?: CVE-2026-54010 is a high-severity vulnerability in Open-Webui, classified under Improper Access Control. CVSS score: 8.3/10. Published 2026-06-23.
How severe is CVE-2026-54010?: High severity. CVSS v3 base score is 8.3 out of 10.