Server-side Request Forgery (SSRF) Affecting open-webui package, versions [0.9.0,0.11.0)


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.22% (13th percentile)

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  • Snyk IDSNYK-PYTHON-OPENWEBUI-18600529
  • published9 Aug 2026
  • disclosed4 Aug 2026
  • creditUnknown

Introduced: 4 Aug 2026

NewCVE-2026-70485  (opens in a new tab)
CWE-918  (opens in a new tab)

How to fix?

Upgrade open-webui to version 0.11.0 or higher.

Overview

open-webui is an Open WebUI

Affected versions of this package are vulnerable to Server-side Request Forgery (SSRF) in the validate_url process. An attacker can access internal services and cloud metadata by submitting specially crafted NAT64-encoded URLs that bypass IP address filtering. This is only exploitable if the deployment's network provides NAT64 translation for the well-known 64:ff9b::/96 prefix.

CVSS Base Scores

version 4.0
version 3.1