CVE-2026-87017Public exploitNetwork attack vector

Metadata disclosure via ignored vector search filters

Published Sep 9, 2026 · Updated Sep 10, 2026

Incorrect authorization in Open WebUI 0.7.0 through 0.11.0 allows remote authenticated users to read inaccessible knowledge-base metadata. Eleven vector-backend search methods accept but ignore the readable-knowledge identifier filter, so shared-collection searches include every knowledge base. Exposure requires a nondefault affected vector backend, enabled knowledge tools, a tool-capable model, and an inaccessible knowledge base; document text and write access remain excluded.

CVSS severity4.3
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect authorization in Open WebUI 0.7.0 through 0.11.0 allows remote authenticated users to read inaccessible knowledge-base metadata. Eleven vector-backend search methods accept but ignore the readable-knowledge identifier filter, so shared-collection searches include every knowledge base. Exposure requires a nondefault affected vector backend, enabled knowledge tools, a tool-capable model, and an inaccessible knowledge base; document text and write access remain excluded.

The record

CVE
CVE-2026-87017
Published
Sep 9, 2026
Updated
Sep 10, 2026
Vendor
Open WebUI
Product
Open WebUI
Classifications
CWE-863, CWE-200, T1213
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 10, 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=>= 0.7.0, < 0.11.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Open WebUI · Open WebUIversion=>= 0.7.0, < 0.11.1

Published CVSS scores

4.3GitHubCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/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.

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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-863Incorrect Authorization
CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1213Data from Information Repositories

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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