CVE-2026-45347: Open WebUI blind SSRF vulnerability in PDF export

# CVE-2026-45347: Open WebUI blind SSRF vulnerability in PDF export

https://gcdradar.vercel.app/incidents/cve-2026-45347-open-webui-blind-ssrf-vulnerability-in-pdf-ex · AIR-2026-0674 · closed 2026-05-14

- Lane: Patch now
- Severity: 2 (Disclosed vulnerability)
- Fix status: Fix status unknown
- First reported: 2026-05-14
- AI role: Attack on AI
- Products: Open WebUI
- CVE ids: CVE-2026-45347
- CVSS: 4.3

## Summary

Open WebUI contains a blind server-side request forgery vulnerability within its PDF generation function. The issue was discovered during a security penetration test and disclosed via advisory.

## What to do

No action recorded; read the sources below and the vendor's advisory.

## Latest updates

- 2026-05-15: CVE-2026-45347: Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. (https://nvd.nist.gov/vuln/detail/CVE-2026-45347)
- 2026-05-14: CVE-2026-45347: Open WebUI vulnerable to blind server side request forgery (SSRF) via the PDF generate function (https://github.com/advisories/GHSA-f776-fp4w-266c)

## Sources

- 2026-05-14 GitHub Advisory Database: CVE-2026-45347: Open WebUI vulnerable to blind server side request forgery (SSRF) via the PDF generate function https://github.com/advisories/GHSA-f776-fp4w-266c
- 2026-05-15 NVD: CVE-2026-45347: Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. https://nvd.nist.gov/vuln/detail/CVE-2026-45347

Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.