CVE-2026-45667 Details
Description
Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.0, GET /api/v1/memories/ef is accessible without authentication and executes request.app.state.EMBEDDING_FUNCTION(...). This allows any unauthenticated caller to trigger embedding generation which can lead to direct cost exposure if a paid provider is used. This vulnerability is fixed in 0.8.0.
A vulnerability in Open WebUI versions through 0.7.2 allows unauthenticated users to access the GET /api/v1/memories/ef endpoint. This endpoint, which is reachable without authentication, triggers the EMBEDDING_FUNCTION with a hard-coded parameter. As a result, any unauthenticated caller can initiate embedding generation, potentially leading to direct costs if a paid embedding provider is used. Additionally, this vulnerability could be exploited to consume server resources, causing a denial-of-service effect.
Users can upgrade to Open WebUI version 0.8.0 or later, where this vulnerability has been fixed by removing the unauthenticated endpoint entirely.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed May 18, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/open-webui/open-webui/security/advisories/GHSA-m69w-p7m4-585j | CISA-ADP | ExploitPatchVendor Advisory |
| https://github.com/open-webui/open-webui/security/advisories/GHSA-m69w-p7m4-585j | [email protected] | ExploitPatchVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-862 | Missing Authorization | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| openwebui open webui | < 0.8.0 |
CPE
Remediation
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Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 19, 2026 | Initial Analysis | [email protected] |
| May 18, 2026 | CVE Modified | CISA-ADP |
| May 15, 2026 | New CVE Received | [email protected] |