Server-Side Request Forgery (SSRF) in Open WebUI - #VU146342
Published: August 31, 2026
Vulnerability identifier: #VU146342
CSH Severity: Low
CVSS v4: 6 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:L/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-918
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to disclose sensitive information from internal services.
The vulnerability exists due to server-side request forgery (SSRF) in the server-side URL fetch functionality when processing user-supplied URLs for RAG URL ingestion and web search. A remote user can submit a crafted URL to make the server fetch internal addresses and disclose sensitive information from internal services.
Only the server-side fetch paths are affected, and user interaction is not required. On Azure-hosted deployments, the reachable internal destination includes the Azure platform channel; deployments not hosted on Azure are unaffected for that specific address.
Affected software
Open WebUI
Remediation
Install security update from vendor's website.
Open WebUI - update to 0.11.1