CVE-2026-45400

Open WebUI: Server-Side Request Forgery (SSRF) bypass in `validate_url`

CVSS 8.5 HIGHEPSS 0.3%CWE-918

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 8.5EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

15 May 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.5, a parsing difference between the urlparse and requests libraries led to an SSRF bypass vulnerability. This vulnerability is fixed in 0.9.5.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N

Affected products

open-webui · open-webui

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References

https://github.com/open-webui/open-webui/security/advisories/GHSA-8w7q-q5jp-jvgx