CVE-2026-70479Public exploitNetwork attack vectorHinoki check available

Authenticated SSRF via unvalidated Playwright sub-resources

Published Aug 4, 2026 · Updated Aug 4, 2026

SSRF in Open WebUI 0.9.6 through versions before 0.11.0 allows remote authenticated users to read internal HTTP responses via crafted pages. SafePlaywrightURLLoader interceptors return early for every resource type other than document, so attacker-controlled JavaScript sends sub-resource requests without URL validation and places response data in the returned DOM. Exploitation requires WEB_LOADER_ENGINE=playwright, a reachable browser, and access to URL ingestion or web search; it grants reads only from services reachable by that browser.

CVSS severity7.7
High
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

SSRF in Open WebUI 0.9.6 through versions before 0.11.0 allows remote authenticated users to read internal HTTP responses via crafted pages. SafePlaywrightURLLoader interceptors return early for every resource type other than document, so attacker-controlled JavaScript sends sub-resource requests without URL validation and places response data in the returned DOM. Exploitation requires WEB_LOADER_ENGINE=playwright, a reachable browser, and access to URL ingestion or web search; it grants reads only from services reachable by that browser.

The record

CVE
CVE-2026-70479
Published
Aug 4, 2026
Updated
Aug 4, 2026
Vendor
Open WebUI
Product
Open WebUI
Classifications
CWE-918, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 4, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 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, < 0.11.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Open WebUI · Open WebUIversion=>= 0.9.6, < 0.11.0

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)
T1190Exploit Public-Facing Application

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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