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CVE-2026-59217

Open WebUI: Upload `metadata.knowledge_id` bypasses the knowledge-base write-access check (read-only users can add files to KB)

Published: Jul 9, 2026Updated: Jul 14, 2026 Sources: CVE List NVDCWE-862
4.3MEDIUM
NVD MITRE
EPSS Score
0.3%
Top 78.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Not available

Description

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. Prior to 0.10.0, the file upload path accepted metadata.knowledge_id and auto-linked uploaded files to a target knowledge base without applying the write-access check used by /api/v1/knowledge//file/add, allowing read-only knowledge-base users to add arbitrary files. This issue is fixed in version 0.10.0.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:NI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-862CWE-863

Affected Products

openwebui
oss-projectaka open webui
open webuiOn-premWeb App
AI / ML / ai-agent-tooling
open-webui
oss-projectaka open-webui/open-webui
open-webuiOn-premWeb App
AI / ML / ai-agent-tooling

Exploitability

Official Patch Available
Workaround Available

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Initial Access
View detailed technique mapping

References

https://github.com/open-webui/open-webui/commit/b7626f05fb92b24ab923ad81a037071ebd5623d1
github.com
https://github.com/open-webui/open-webui/pull/26001
github.com
https://github.com/open-webui/open-webui/releases/tag/v0.10.0
github.com
and 1 more references View all →

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