Vulnerability-Lookup

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

Vulnerability from cvelistv5 – Published: 2026-01-23 03:28 – Updated: 2026-01-23 16:33

Title

Open WebUI Cleartext Transmission of Credentials Information Disclosure Vulnerability

Summary

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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-01-23 16:33 UTC

CWE

CWE-319 - Cleartext Transmission of Sensitive Information

Assigner

zdi mitre root

References

1 reference

URL	Tags
https://www.zerodayinitiative.com/advisories/ZDI-…	x_research-advisory

Impacted products

1 product

Vendor	Product	Version	CPE status
Open WebUI	Open WebUI	Affected: 0.6.32	guessed

Date Public

2026-01-09 16:36

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-0767",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-01-23T16:33:42.787569Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-01-23T16:33:51.687Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unknown",
          "product": "Open WebUI",
          "vendor": "Open WebUI",
          "versions": [
            {
              "status": "affected",
              "version": "0.6.32"
            }
          ]
        }
      ],
      "dateAssigned": "2026-01-08T22:50:10.942Z",
      "datePublic": "2026-01-09T16:36:36.010Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "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.\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."
        }
      ],
      "metrics": [
        {
          "cvssV3_0": {
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.0"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-319",
              "description": "CWE-319: Cleartext Transmission of Sensitive Information",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-01-23T03:28:39.523Z",
        "orgId": "99f1926a-a320-47d8-bbb5-42feb611262e",
        "shortName": "zdi"
      },
      "references": [
        {
          "name": "ZDI-26-033",
          "tags": [
            "x_research-advisory"
          ],
          "url": "https://www.zerodayinitiative.com/advisories/ZDI-26-033/"
        }
      ],
      "source": {
        "lang": "en",
        "value": "Peter Girnus (@gothburz), Brandon Niemczyk of Trend Zero Day Initiative"
      },
      "title": "Open WebUI Cleartext Transmission of Credentials Information Disclosure Vulnerability"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "99f1926a-a320-47d8-bbb5-42feb611262e",
    "assignerShortName": "zdi",
    "cveId": "CVE-2026-0767",
    "datePublished": "2026-01-23T03:28:39.523Z",
    "dateReserved": "2026-01-08T22:50:10.918Z",
    "dateUpdated": "2026-01-23T16:33:51.687Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-0767",
      "date": "2026-09-02",
      "epss": "0.00253",
      "percentile": "0.16565"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-0767\",\"sourceIdentifier\":\"zdi-disclosures@trendmicro.com\",\"published\":\"2026-01-23T04:16:03.660\",\"lastModified\":\"2026-09-02T18:19:00.897\",\"vulnStatus\":\"Rejected\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Rejected reason: 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\"}],\"metrics\":{},\"references\":[]}}",
    "redhat_vex": {
      "current_release_date": "2026-01-24T09:15:47+00:00",
      "cve": "CVE-2026-0767",
      "id": "CVE-2026-0767",
      "initial_release_date": "2026-01-09T16:36:36.010000+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "Open WebUI Cleartext Transmission of Credentials Information Disclosure Vulnerability",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-0767.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-0767\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-01-23T16:33:42.787569Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-01-23T16:33:47.579Z\"}}], \"cna\": {\"title\": \"Open WebUI Cleartext Transmission of Credentials Information Disclosure Vulnerability\", \"source\": {\"lang\": \"en\", \"value\": \"Peter Girnus (@gothburz), Brandon Niemczyk of Trend Zero Day Initiative\"}, \"metrics\": [{\"format\": \"CVSS\", \"cvssV3_0\": {\"version\": \"3.0\", \"baseScore\": 5.3, \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N\"}}], \"affected\": [{\"vendor\": \"Open WebUI\", \"product\": \"Open WebUI\", \"versions\": [{\"status\": \"affected\", \"version\": \"0.6.32\"}], \"defaultStatus\": \"unknown\"}], \"datePublic\": \"2026-01-09T16:36:36.010Z\", \"references\": [{\"url\": \"https://www.zerodayinitiative.com/advisories/ZDI-26-033/\", \"name\": \"ZDI-26-033\", \"tags\": [\"x_research-advisory\"]}], \"dateAssigned\": \"2026-01-08T22:50:10.942Z\", \"descriptions\": [{\"lang\": \"en\", \"value\": \"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.\\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.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-319\", \"description\": \"CWE-319: Cleartext Transmission of Sensitive Information\"}]}], \"providerMetadata\": {\"orgId\": \"99f1926a-a320-47d8-bbb5-42feb611262e\", \"shortName\": \"zdi\", \"dateUpdated\": \"2026-01-23T03:28:39.523Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-0767\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-01-23T16:33:51.687Z\", \"dateReserved\": \"2026-01-08T22:50:10.918Z\", \"assignerOrgId\": \"99f1926a-a320-47d8-bbb5-42feb611262e\", \"datePublished\": \"2026-01-23T03:28:39.523Z\", \"assignerShortName\": \"zdi\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}

FKIE_CVE-2026-0767

Vulnerability from fkie_nvd - Published: 2026-01-23 04:16 - Updated: 2026-06-17 10:11

Severity

6.5 (Medium) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Summary

References

	URL	Tags
	zdi-disclosures@trendmicro.com	https://www.zerodayinitiative.com/advisories/ZDI-26-033/	Third Party Advisory

Impacted products

	Vendor	Product	Version
	openwebui	open_webui	0.6.32

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unknown",
          "product": "Open WebUI",
          "vendor": "Open WebUI",
          "versions": [
            {
              "status": "affected",
              "version": "0.6.32"
            }
          ]
        }
      ],
      "source": "zdi-disclosures@trendmicro.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:openwebui:open_webui:0.6.32:*:*:*:*:*:*:*",
              "matchCriteriaId": "2B5D5634-470E-499C-A7C3-A5FD7277D287",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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.\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."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de revelaci\u00f3n de informaci\u00f3n por transmisi\u00f3n de credenciales en texto claro en Open WebUI. Esta vulnerabilidad permite a atacantes adyacentes a la red revelar informaci\u00f3n sensible en instalaciones afectadas de Open WebUI. La autenticaci\u00f3n no es necesaria para explotar esta vulnerabilidad.\n\nLa falla espec\u00edfica reside en el manejo de las credenciales proporcionadas al endpoint. El problema se debe a la transmisi\u00f3n de informaci\u00f3n sensible en texto claro. Un atacante puede aprovechar esta vulnerabilidad para revelar credenciales transmitidas, lo que lleva a un mayor compromiso. Fue ZDI-CAN-28259."
    }
  ],
  "id": "CVE-2026-0767",
  "lastModified": "2026-06-17T10:11:20.830",
  "metrics": {
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "ADJACENT_NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.0"
        },
        "exploitabilityScore": 1.6,
        "impactScore": 3.6,
        "source": "zdi-disclosures@trendmicro.com",
        "type": "Secondary"
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "ADJACENT_NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-0767",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-01-23T16:33:42.787569Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-01-23T04:16:03.660",
  "references": [
    {
      "source": "zdi-disclosures@trendmicro.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-26-033/"
    }
  ],
  "sourceIdentifier": "zdi-disclosures@trendmicro.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-319"
        }
      ],
      "source": "zdi-disclosures@trendmicro.com",
      "type": "Secondary"
    }
  ]
}

GHSA-VH96-P962-544H

Vulnerability from github – Published: 2026-01-23 06:31 – Updated: 2026-01-23 06:31

Details

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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-0767"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-319"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-01-23T04:16:03Z",
    "severity": "MODERATE"
  },
  "details": "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.\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": "2026-01-23T06:31:24Z",
  "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"
    }
  ]
}

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.

Action not permitted

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

FKIE_CVE-2026-0767

GHSA-VH96-P962-544H

Tags

Sightings

Nomenclature