Insertion of Sensitive Information Into Sent Data Affecting open-webui package, versions [0.7.0,0.9.5)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-PYTHON-OPENWEBUI-16755446
- published19 May 2026
- disclosed14 May 2026
- creditUnknown
Introduced: 14 May 2026
NewCVE-2026-45387 (opens in a new tab)How to fix?
Upgrade open-webui to version 0.9.5 or higher.
Overview
open-webui is an Open WebUI
Affected versions of this package are vulnerable to Insertion of Sensitive Information Into Sent Data through the get_model_by_id handler in routers/models.py. An attacker can read the admin-curated system prompt and other model behavior settings by sending a GET request for a model ID they are allowed to view but not edit. The per-ID model response includes the full serialized model object, exposing the params field to read-only callers and leaking configuration that is intended to stay hidden from non-curators.