Vulnerability details
CVE-2026-45400
open-webui open-webui
Open WebUI: Server-Side Request Forgery (SSRF) bypass in `validate_url`
CVSS 3.1
8.5High
Official description
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 scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.5High | 3.1 | CVEProject cvelistV5 (CNA) (GitHub_M) | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| open-webui | open-webui | < 0.9.5 | CVEProject cvelistV5 (CNA) |
References and advisories
1- https://github.com/open-webui/open-webui/security/advisories/GHSA-8w7q-q5jp-jvgx x_refsource_CONFIRM
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Details
- Published
- 2026-05-16
- Last updated
- 2026-05-16
- State
- Published
- Assigner (CNA)
- GitHub_M
Exploit prediction (EPSS)
0.29%
Probability of exploitation in 30 days
21.8%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- Proof of concept
- Technical impact
- Partial
Weaknesses (CWE)
- CWE-918Server-Side Request Forgery (SSRF)