SB2026051163 - Server-Side Request Forgery (SSRF) in Open WebUI
Published: May 11, 2026
Security Bulletin ID
SB2026051163
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Server-Side Request Forgery (SSRF) (CVE-ID: N/A)
The vulnerability allows a remote user to trigger arbitrary server-side GET requests.
The vulnerability exists due to server-side request forgery in the PDF generate function when processing user-supplied HTML during PDF export. A remote user can inject a crafted image tag to trigger arbitrary server-side GET requests.
The issue is blind, so responses could not be read during testing, but internal assets may be enumerated through response delays.
Remediation
Install update from vendor's website.