CVE-2026-56400
9
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Summary
open-webui before 0.3.14 contains a cross-origin resource sharing misconfiguration allowing arbitrary origins with allow_origins=* and authenticated requests to the /api/v1/functions endpoint. Attackers can execute arbitrary code on the openwebui instance by crafting malicious cross-site requests from attacker-controlled websites when an admin user visits them.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| open-webui | open-webui | 0 < 0.3.14 | affected |
| open-webui | open-webui | 0.3.14 | unaffected |
Weaknesses
- CWE-613: Insufficient Session Expiration
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: poc
- Automatable: no
- Technical Impact: total
Additional References
References
- https://github.com/open-webui/open-webui/security/advisories/GHSA-6xcp-7mpr-m7wm
- https://www.vulncheck.com/advisories/open-webui-remote-code-execution-via-cors-misconfiguration-and-session-validation
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