anonhaven

CVE-2026-88001

MEDIUM CVSS 3.1: 5.0 EPSS 0.27%
Updated Sep 10, 2026
Open
Parameter Value
CVSS 5.0 (MEDIUM)
Fixed In 0.11.1
Type CWE-918 (Server-Side Request Forgery (SSRF))
Vendor Open
Public PoC No

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.5 until 0.11.1, server-side web fetches did not reapply WEB_FETCH_FILTER_LIST or private-address controls to HTTP redirect destinations when AIOHTTP_CLIENT_ALLOW_REDIRECTS was enabled. An authenticated user could redirect the aiohttp and requests fetch paths to excluded hosts, loopback, private networks, or cloud metadata services and route resulting content into web search, URL ingestion, page-fetch tools, or chat image processing.

This issue is fixed in version 0.11.1.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
Low
Partial data leak
Integrity
None
No data modification
Availability
None
No disruption

CVSS Vector v3.1

Weakness Type (CWE)

CWE-918 Server-Side Request Forgery (SSRF)

References 4

https://github.com/open-webui/open-webui/commit/e3e4bd87df6fc629e7e22081d980d55…
security-advisories@github.com
https://github.com/open-webui/open-webui/pull/27823
security-advisories@github.com
https://github.com/open-webui/open-webui/releases/tag/v0.11.1
security-advisories@github.com
https://github.com/open-webui/open-webui/security/advisories/GHSA-5x7x-4c3c-qf5w
security-advisories@github.com
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