Denial of Service in open-webui/open-webui
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| open-webui | open-webui/open-webui | affected |
|
No data.
| Vendor | Product | Versions |
|---|---|---|
| Open-webui | Open-webui | — |
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2025-6928 | In version 0.3.8 of open-webui, an endpoint for converting markdown to HTML is exposed without authentication. A maliciously crafted markdown payload can cause the server to spend excessive time converting it, leading to a denial of service. The server becomes unresponsive to other requests until the conversion is complete. |
Github GHSA |
GHSA-5v9m-57mq-qc75 | Open WebUI denial of service through endpoint for converting markdown |
No CVSS v4.0
No CVSS v3.1
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.878% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-400 |
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-770 |
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Openwebui
Openwebui open Webui |
|
| CPEs | cpe:2.3:a:openwebui:open_webui:0.3.8:*:*:*:*:*:*:* | |
| Vendors & Products |
Openwebui
Openwebui open Webui |
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
| Type | Values Removed | Values Added |
|---|---|---|
| Description | In version 0.3.8 of open-webui, an endpoint for converting markdown to HTML is exposed without authentication. A maliciously crafted markdown payload can cause the server to spend excessive time converting it, leading to a denial of service. The server becomes unresponsive to other requests until the conversion is complete. | |
| Title | Denial of Service in open-webui/open-webui | |
| Weaknesses | CWE-400 | |
| References |
| |
| Metrics |
cvssV3_0
|