CVE-2026-54008: Open WebUI Redirect-Bypass SSRF in OAuth Processing

# CVE-2026-54008: Open WebUI Redirect-Bypass SSRF in OAuth Processing

https://gcdradar.vercel.app/incidents/cve-2026-54008-open-webui-redirect-bypass-ssrf-in-oauth-proc · AIR-2026-0773 · closed 2026-06-17

- Lane: Patch now
- Severity: 2 (Disclosed vulnerability)
- Fix status: Fix status unknown
- First reported: 2026-06-17
- AI role: Attack on AI
- Products: Open WebUI
- CVE ids: CVE-2026-54008
- CVSS: 8.5

## Summary

An incomplete fix for OAuth profile picture processing in Open WebUI permits attackers to bypass URL validation via redirects and access internal resources. A vulnerability advisory is available.

## What to do

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

## Latest updates

- 2026-06-23: CVE-2026-54008: Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. (https://nvd.nist.gov/vuln/detail/CVE-2026-54008)
- 2026-06-17: CVE-2026-54008: Open WebUI: Redirect-Bypass SSRF in OAuth `_process_picture_url` (incomplete-fix sibling of CVE-2026-45401) (https://github.com/advisories/GHSA-226f-f24g-524w)

## Sources

- 2026-06-17 GitHub Advisory Database: CVE-2026-54008: Open WebUI: Redirect-Bypass SSRF in OAuth `_process_picture_url` (incomplete-fix sibling of CVE-2026-45401) https://github.com/advisories/GHSA-226f-f24g-524w
- 2026-06-23 NVD: CVE-2026-54008: Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. https://nvd.nist.gov/vuln/detail/CVE-2026-54008

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