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CVE-2026-45338

Open WebUI: SSRF via OAuth Profile Picture URL in _process_picture_url (oauth.py)

Published: May 15, 2026Updated: May 18, 2026 Sources: CVE List NVD BDUCWE-918
7.7HIGH
NVD MITRE
EPSS Score
0.4%
Top 70.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, a Server-Side Request Forgery (SSRF) vulnerability exists in _process_picture_url() in backend/open_webui/utils/oauth.py (line ~1338). The function fetches arbitrary URLs from OAuth picture claims without applying validate_url(), allowing an attacker to force the server to make HTTP requests to internal resources and exfiltrate the full response. This vulnerability is fixed in 0.9.0.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:CC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-918

Affected Products

open webuiopenwebui
On-premWeb App
AI / ML / ai-agent-tooling
open-webuiopen-webui
On-premWeb App
AI / ML / ai-agent-tooling
Open WebUIСообщество свободного программного обеспечения
On-premWeb App
Web & CMS Plugins
openwebuioss-projectAI / MLaka open webui
open-webuioss-projectAI / MLaka open-webui/open-webui, open-webui
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf

Exploitability

Official Patch Available
Workaround Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Command and Control
Initial Access
View detailed technique mapping

References

https://github.com/open-webui/open-webui/security/advisories/GHSA-24c9-2m8q-qhmh
github.com

Timeline

Published
May 15, 2026
Last Updated
May 18, 2026

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