CVE-2026-87996 Open WebUI - Server Side Request Forgery

Open WebUI 0.9.6 to 0.11.1 contains an SSRF caused by inconsistent hostname validation in SafePlaywrightURLLoader, letting authenticated users with DNS control expose internal service responses, exploit requires authenticated user controlling DNS.

CVSS base score 7.7 /10
High
CISA KEV
Not listed
Public exploit
Proof of concept available
Authentication
Required
EPSS
0.35% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Server Side Request Forgery
Impact
Information Disclosure
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Published
9 September 2026
Updated
15 October 2026
Weakness
CWE-367

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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