CVE-2026-59227Public exploitNetwork attack vector

Authenticated resource consumption via missing image-edit checks

Published Jul 9, 2026 · Updated Jul 9, 2026

Authorization bypass in Open WebUI 0.8.11 through 0.9.5 allows remote authenticated users to invoke server-side image editing. The POST /api/v1/images/edit handler authenticates verified users but dispatches provider requests without checking ENABLE_IMAGE_EDIT or features.image_generation. A verified non-admin account is sufficient to consume administrator-credentialed, billable provider resources without exposing credentials or cross-user data.

CVSS severity4.3
Medium
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization bypass in Open WebUI 0.8.11 through 0.9.5 allows remote authenticated users to invoke server-side image editing. The POST /api/v1/images/edit handler authenticates verified users but dispatches provider requests without checking ENABLE_IMAGE_EDIT or features.image_generation. A verified non-admin account is sufficient to consume administrator-credentialed, billable provider resources without exposing credentials or cross-user data.

The record

CVE
CVE-2026-59227
Published
Jul 9, 2026
Updated
Jul 9, 2026
Vendor
Open WebUI
Product
Open WebUI
Classifications
CWE-862, CWE-863, T1496.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 9, 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=>= 0.8.11, < 0.10.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Open WebUI · Open WebUIversion=>= 0.8.11, < 0.10.0

Published CVSS scores

5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
4.3GitHubCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

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-862Missing Authorization
CWE-863Incorrect Authorization
T1496.004Cloud Service Hijacking

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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