Vulnerability · Published May 15, 2026 · Assigned by GitHub_M
CVE-2026-45400Open WebUI: Server-Side Request Forgery (SSRF) bypass in `validate_url`
High 8.5
In plain English
A high-severity server-side request forgery in open-webui from open-webui. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 22% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)8.5High
Exploit odds (30 days)0.3%top 78.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| PyPI | open-webui | 0.9.5 | GHSA-8w7q-q5jp-jvgx |
| PyPI | open-webui | 0.9.5 | PYSEC-2026-2715 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| open-webui | open-webui | < 0.9.5 |
Weakness: CWE-918 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
References
- https://github.com/open-webui/open-webui/security/advisories/GHSA-8w7q-q5jp-jvgx x_refsource_CONFIRM