Vulnerability-Lookup

GHSA-VH96-P962-544H

Vulnerability from github – Published: 2026-01-23 06:31 – Updated: 2026-09-02 20:48

Summary

Withdrawn Advisory: Open WebUI/ZDI-CAN-28259

Details

Withdrawn Advisory

This advisory has been withdrawn because it does not describe a valid vulnerability. This link is maintained to preserve external references.

Original 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.

Severity

5.3 (Medium)


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

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{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "open-webui"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "0.6.33"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-0767"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-319"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-09-02T20:48:53Z",
    "nvd_published_at": "2026-01-23T04:16:03Z",
    "severity": "MODERATE"
  },
  "details": "### Withdrawn Advisory\nThis advisory has been withdrawn because it does not describe a valid vulnerability. This link is maintained to preserve external references.\n\n### Original Description\nOpen 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.\n\nThe 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.",
  "id": "GHSA-vh96-p962-544h",
  "modified": "2026-09-02T20:48:54Z",
  "published": "2026-01-23T06:31:24Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-0767"
    },
    {
      "type": "WEB",
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-26-033"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Withdrawn Advisory: Open WebUI/ZDI-CAN-28259",
  "withdrawn": "2026-09-02T20:48:53Z"
}

CVE-2026-0767 (GCVE-0-2026-0767)

Vulnerability from cvelistv5 – Published: 2026-01-23 03:28 – Updated: 2026-09-02 17:34

Open WebU's investigation showed that this describes the behavior of plain HTTP rather than a defect in the product. TLS termination is the operator's deployment decision, as it is for any backend that speaks HTTP, and not a security issue. https://docs.openwebui.com/security/vendor-dispositions/cve-2026-0767

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{
  "containers": {
    "cna": {
      "providerMetadata": {
        "dateUpdated": "2026-09-02T17:34:15.123Z",
        "orgId": "99f1926a-a320-47d8-bbb5-42feb611262e",
        "shortName": "zdi"
      },
      "rejectedReasons": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Open WebU\u0027s investigation showed that this describes the behavior of plain HTTP rather than a defect in the product. TLS termination is the operator\u0027s deployment decision, as it is for any backend that speaks HTTP, and not a security issue. https://docs.openwebui.com/security/vendor-dispositions/cve-2026-0767"
            }
          ],
          "value": "Open WebU\u0027s investigation showed that this describes the behavior of plain HTTP rather than a defect in the product. TLS termination is the operator\u0027s deployment decision, as it is for any backend that speaks HTTP, and not a security issue. https://docs.openwebui.com/security/vendor-dispositions/cve-2026-0767"
        }
      ],
      "x_generator": {
        "engine": "Vulnogram 1.0.5"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "99f1926a-a320-47d8-bbb5-42feb611262e",
    "assignerShortName": "zdi",
    "cveId": "CVE-2026-0767",
    "datePublished": "2026-01-23T03:28:39.523Z",
    "dateRejected": "2026-09-02T17:27:29.647Z",
    "dateReserved": "2026-01-08T22:50:10.918Z",
    "dateUpdated": "2026-09-02T17:34:15.123Z",
    "state": "REJECTED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.