CVE-2026-87999 Open WebUI - Server Side Request Forgery

Open WebUI < 0.11.1 contains a server-side request forgery caused by improper validation of destination addresses in API endpoints, letting authenticated users fetch internal Azure platform content, exploit requires user authentication.

CVSS base score 7.1 /10
High
CISA KEV
Not listed
Public exploit
Proof of concept available
Authentication
Required
EPSS
0.36% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Server Side Request Forgery
Impact
Server Side Request Forgery, Information Disclosure
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N
Published
9 September 2026
Updated
15 October 2026
Weakness
CWE-918

Vendor fix

Update to version 0.11.1 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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