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Open Webui CVE-2026-0767

MEDIUM
Cleartext Transmission of Sensitive Information (CWE-319)
2026-01-23 zdi-disclosures@trendmicro.com
6.5
CVSS 3.1 · NVD
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A04:2025 - Cryptographic Failures
ASVS 5.0
V12 - Secure Communication Transport encryption
Impact

CVSS 6.5 (MEDIUM). Attack vector: Adjacent Network. Complexity: Low. Privileges required: None. User interaction: None. Exploitable via remote/network.

Exploit ScenarioDerived

A remote attacker could exploit this flaw, further compromise.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 12, 2026

Open WebUI transmits authentication credentials in cleartext over the network, enabling adjacent attackers to intercept and obtain sensitive information without authentication. This information disclosure vulnerability can facilitate unauthorized access and further compromise of affected systems. No patch is currently available.

Earlier versions of this analysis (1)
v1 Mar 12, 2026 - 21:54 CVSS 6.5

Open Webui versions up to 0.6.32 is affected by cleartext transmission of sensitive information (CVSS 6.5).

RemediationAI

Monitor vendor advisories for a patch.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability (CWE-319: Cleartext Transmission of Sensitive Information) affects Open Webui. 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 transmit

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 6.5 MEDIUM
AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

DescriptionCVE.org

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.

Executive ViewAI

Why It Matters

CVE-2026-0767 presents notable security risk rated CVSS 6.5. Exploitation could compromise the security of affected deployments. Organizations should apply vendor updates when available and monitor for exploitation.

Business Impact: Moderate
Compensating Controls

Apply vendor patch. If patching is delayed: restrict network access and enable monitoring.

Threat Intelligence Overview

EPSS Score
0.0%
Top 95% exploitable
Data Quality
3 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.0%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

Exploitation· derived
None
System Exposure· derived
Controlled
Automatable· derived
No

Priority Score

32
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +32
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

Affected Products (CPE)CVE.org

cpe:2.3:a:openwebui:open_webui:0.6.32:*:*:*:*:*:*:*
CVE-2024-8017 CRITICAL POC
9.0 Mar 20

An XSS vulnerability exists in open-webui/open-webui versions <= 0.3.8, specifically in the function that constructs the

CVE-2024-7044 HIGH POC
8.9 Mar 20

A Stored Cross-Site Scripting (XSS) vulnerability exists in the chat file upload functionality of open-webui/open-webui

CVE-2024-6707 HIGH POC
8.8 Aug 07

Attacker controlled files can be uploaded to arbitrary locations on the web server's filesystem by abusing a path traver

CVE-2026-87995 HIGH POC
8.7 Sep 09

Stored cross-site scripting in Open WebUI's terminal port preview feature allows an authenticated attacker sharing a ter

CVE-2024-8053 HIGH POC
8.2 Mar 20

In version v0.3.10 of open-webui/open-webui, the `api/v1/utils/pdf` endpoint lacks authentication mechanisms, allowing u

CVE-2026-87016 HIGH POC
8.1 Sep 09

OAuth and SCIM identity confusion in Open WebUI 0.6.41-0.10.x (SQLite-backed deployments only) allows unauthenticated re

CVE-2026-87996 HIGH POC
7.7 Sep 09

DNS rebinding SSRF in Open WebUI versions 0.9.6 through 0.11.0 allows authenticated users who control authoritative DNS

CVE-2026-87011 HIGH POC
7.5 Sep 09

Denial of service in Open WebUI versions 0.9.0-0.11.0 allows unauthenticated remote attackers to stall the application s

CVE-2024-7983 HIGH POC
7.5 Mar 20

In version 0.3.8 of open-webui, an endpoint for converting markdown to HTML is exposed without authentication. Rated hig

CVE-2026-26193 HIGH POC
7.3 Feb 19

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. [CVSS 7.3 HIGH]

CVE-2026-26192 HIGH POC
7.3 Feb 19

Stored XSS in Open WebUI prior to version 0.7.0 allows authenticated users to inject malicious HTML payloads into chat d

CVE-2026-87998 HIGH POC
7.1 Sep 09

Improper privilege management in Open WebUI 0.10.0 through 0.11.0 allows any authenticated low-privilege user with write

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