CVE-2026-54018Public exploitNetwork attack vector

Authenticated internal data access via unchecked redirects

Published Jun 23, 2026 · Updated Jun 23, 2026

SSRF in Open WebUI before 0.9.6 allows remote authenticated users to read internal services through a crafted web-loader URL. SafePlaywrightURLLoader validates only the initial URL before page.goto follows HTTP redirects, so redirected private or link-local destinations are never rechecked. Low-privileged access to the Playwright-backed Web Search or URL Loader is required; exposed data can include internal tools, containers, or cloud metadata.

CVSS severity7.7
High
EPSS probability0.39%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in Open WebUI before 0.9.6 allows remote authenticated users to read internal services through a crafted web-loader URL. SafePlaywrightURLLoader validates only the initial URL before page.goto follows HTTP redirects, so redirected private or link-local destinations are never rechecked. Low-privileged access to the Playwright-backed Web Search or URL Loader is required; exposed data can include internal tools, containers, or cloud metadata.

The record

CVE
CVE-2026-54018
Published
Jun 23, 2026
Updated
Jun 23, 2026
Vendor
Open WebUI
Product
Open WebUI
Classifications
CWE-918, CAPEC-664, T1046, T1552.005
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 23, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 23, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 0.9.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Open WebUI · Open WebUIversion=< 0.9.6

Published CVSS scores

7.7GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
CAPEC-664Server Side Request Forgery
T1046Network Service Discovery
T1552.005Unsecured Credentials Cloud Instance Metadata API

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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