Open WebUI: Cross-user code-interpreter and tool execution via unvalidated Socket.IO event-caller session_id

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Summary

CVECVE-2026-59216
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-09 17:17:02 UTC
Updated2026-07-10 05:16:38 UTC
DescriptionOpen WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. Prior to 0.10.0, get_event_call delivered execute:python and execute:tool Socket.IO events to a client-supplied session_id after checking only that the session was connected, allowing authenticated users who learned another socket ID through ydoc:document:join to run code interpreter Python or tools in that user session. This issue is fixed in version 0.10.0.

Risk And Classification

Primary CVSS: v3.1 7.7 HIGH from [email protected]

CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N

EPSS: 0.002760000 probability, percentile 0.194670000 (date 2026-07-10)

Problem Types: CWE-94 | CWE-200 | CWE-639 | CWE-862 | CWE-94 CWE-94: Improper Control of Generation of Code ('Code Injection') | CWE-200 CWE-200: Exposure of Sensitive Information to an Unauthorized Actor | CWE-639 CWE-639: Authorization Bypass Through User-Controlled Key | CWE-862 CWE-862: Missing Authorization

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary7.7HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N
3.1CNADECLARED7.7HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
None

CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Open-webui Open-webui affected < 0.10.0 Not specified

References

ReferenceSourceLinkTags
github.com/open-webui/open-webui/releases/tag/v0.10.0 [email protected] github.com
github.com/open-webui/open-webui/pull/25763 [email protected] github.com
github.com/open-webui/open-webui/security/advisories/GHSA-74h3-cxq7-vc5q 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com
github.com/open-webui/open-webui/commit/386ac958144dbbbf0aa6e268070d72b6... [email protected] github.com
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