SSRF Vulnerability in Open WebUI Artificial Intelligence Platform
CVE-2026-54018

7.7HIGH

Key Information:

Vendor

Open-webui

Status
Open-webui
Vendor
CVE Published:
23 June 2026

What is CVE-2026-54018?

The Open WebUI platform, a self-hosted AI tool, contains a Server-Side Request Forgery (SSRF) vulnerability that allows attackers to exploit URL validation processes. Prior to version 0.9.6, the SafePlaywrightURLLoader's validate_url function inadequately prevents access to restricted internal network resources when following HTTP redirects. An attacker can leverage this flaw by providing a 'safe' URL that points to a restricted address, thus gaining unauthorized access to internal services even if certain application protections are enabled. This vulnerability was addressed in version 0.9.6.

Affected Version(s)

open-webui < 0.9.6

References

https://github.com/open-webui/open-webui/security/advisor...
x_refsource_CONFIRM

CVSS V3.1

Score:
7.7
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.