Open WebUI Cleartext Transmission of Credentials Information Disclosure Vulnerability. This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of Open WebUI. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the handling of credentials provided to the endpoint. The issue results from transmitting sensitive information in plaintext. An attacker can leverage this vulnerability to disclose transmitted credentials, leading to further compromise. Was ZDI-CAN-28259.

Metrics

No CVSS v4.0

No CVSS v3.1

Attack Vector Adjacent Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00014.

Exploitation none

Automatable no

Technical Impact partial

Affected Vendors & Products

Vendors Products
Open-webui Subscribe
Open-webui Subscribe

No data.

No data.

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Vendors Products
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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://www.zerodayinitiative.com/advisories/ZDI-26-033/ cve-icon cve-icon
History

Fri, 23 Jan 2026 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Fri, 23 Jan 2026 16:45:00 +0000

Type Values Removed Values Added
First Time appeared Open-webui
Open-webui open-webui
Vendors & Products Open-webui
Open-webui open-webui

Fri, 23 Jan 2026 04:00:00 +0000

Type Values Removed Values Added
Description Open WebUI Cleartext Transmission of Credentials Information Disclosure Vulnerability. This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of Open WebUI. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of credentials provided to the endpoint. The issue results from transmitting sensitive information in plaintext. An attacker can leverage this vulnerability to disclose transmitted credentials, leading to further compromise. Was ZDI-CAN-28259.
Title Open WebUI Cleartext Transmission of Credentials Information Disclosure Vulnerability
Weaknesses CWE-319
References
Metrics cvssV3_0

{'score': 5.3, 'vector': 'CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: zdi

Published:

Updated: 2026-01-23T16:33:51.687Z

Reserved: 2026-01-08T22:50:10.918Z

Link: CVE-2026-0767

cve-icon Vulnrichment

Updated: 2026-01-23T16:33:47.579Z

cve-icon NVD

Status : Received

Published: 2026-01-23T04:16:03.660

Modified: 2026-01-23T04:16:03.660

Link: CVE-2026-0767

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-01-23T10:26:43Z

Weaknesses