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CVE Record

CVE-2026-0767: Open WebUI Cleartext Transmission of Credentials Information Disclosure Vulnerability

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.

MediumCVSS 5.3Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2026-0767 affects Open WebUI 0.6.32 and may expose credentials because sensitive information is transmitted in plaintext. An attacker on an adjacent network could capture those credentials without logging in first. Business impact depends on where Open WebUI is deployed and what privileges captured credentials provide.

Executive priority

Treat as a moderate confidentiality risk. Prioritize review if Open WebUI handles privileged credentials or is accessible on shared networks. The main business concern is credential theft leading to broader access, not direct system takeover from the described flaw.

Technical view

The flaw is categorized as CWE-319, cleartext transmission of sensitive information. ZDI describes the issue as credential handling at an endpoint that transmits sensitive data in plaintext. CVSS 3.0 is 5.3: network-adjacent attack vector, high attack complexity, no privileges, no user interaction, and high confidentiality impact.

Likely exposure

Exposure is most relevant where Open WebUI 0.6.32 is reachable from shared, local, or otherwise adjacent networks. Internet-wide exposure is not stated in the sources. Authentication is not required, but the attacker must be positioned to observe affected traffic.

Exploitation context

No cited source states active exploitation, and the CVE is not listed as KEV in the provided bundle. Exploitation requires network adjacency and favorable conditions to capture plaintext credential transmission. Successful credential disclosure could enable follow-on compromise depending on credential scope.

Researcher notes

Public details are limited. The affected version listed is Open WebUI 0.6.32, with default status unknown. The advisory identifies plaintext credential transmission at an endpoint but does not provide endpoint names, patch details, or exploit status in the supplied sources.

Mitigation direction

  • Identify any Open WebUI 0.6.32 deployments.
  • Check Open WebUI and ZDI guidance for fixed versions or vendor mitigations.
  • Limit access to Open WebUI from untrusted or shared networks.
  • Ensure credentials are not transmitted over unencrypted channels.
  • Rotate credentials if plaintext exposure is suspected.

Validation and detection

  • Confirm deployed Open WebUI versions and compare against 0.6.32.
  • Review configuration and traffic handling for encrypted credential transmission.
  • Check logs and network monitoring for unexpected credential exposure indicators.
  • Verify whether vendor guidance or updates have been applied.
  • Document network segments where Open WebUI is reachable.
Prepared
Confidence
medium
Sources
3

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-319: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2026-0767 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Medium
CVSS
5.3 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
5.3CVSS 3.0MediumCVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N1.63.6Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

5.3Medium
CVSS 3.0 vector shape for CVE-2026-0767Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Open WebUIOpen WebUI0.6.32unknown
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-319 · source CWE mapping

Cleartext Transmission of Sensitive Information

Cleartext Transmission of Sensitive Information represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.