CVE-2026-23922 (GCVE-0-2026-23922)

Vulnerability from cvelistv5 – Published: 2026-08-18 12:13 – Updated: 2026-08-18 16:02
VLAI
Title
Email media OAuth secret leak to Super Admin
Summary
The email media OAuth field 'Client secret' cannot be read after saving, but a Super Admin can leak it by setting a malicious 'Token endpoint'. Changes were made to reset the client secret upon changing the token endpoint.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 16:02 UTC
CWE
  • CWE-522 - Insufficiently Protected Credentials
References
Impacted products
Vendor Product Version
Zabbix Zabbix Affected: 7.4.0 , ≤ 7.4.8 (git)
Create a notification for this product.
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-23922",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-18T16:02:07.284994Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-18T16:02:15.215Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unknown",
          "modules": [
            "Frontend"
          ],
          "product": "Zabbix",
          "repo": "https://git.zabbix.com/",
          "vendor": "Zabbix",
          "versions": [
            {
              "changes": [
                {
                  "at": "7.4.9",
                  "status": "unaffected"
                }
              ],
              "lessThanOrEqual": "7.4.8",
              "status": "affected",
              "version": "7.4.0",
              "versionType": "git"
            }
          ]
        }
      ],
      "configurations": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eA Zabbix Super Admin setting a malicious OAuth token endpoint.\u003c/p\u003e"
            }
          ],
          "value": "A Zabbix Super Admin setting a malicious OAuth token endpoint."
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "Zabbix wants to thank sebiee for submitting this report on the HackerOne bug bounty platform."
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eThe email media OAuth field \u0027Client secret\u0027 cannot be read after saving, but a Super Admin can leak it by setting a malicious \u0027Token endpoint\u0027. Changes were made to reset the client secret upon changing the token endpoint.\u003c/p\u003e"
            }
          ],
          "value": "The email media OAuth field \u0027Client secret\u0027 cannot be read after saving, but a Super Admin can leak it by setting a malicious \u0027Token endpoint\u0027. Changes were made to reset the client secret upon changing the token endpoint."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-194",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-194: Fake the Source of Data"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 2.1,
            "baseSeverity": "LOW",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "HIGH",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "NONE",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-522",
              "description": "CWE-522: Insufficiently Protected Credentials",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-18T12:13:38.438Z",
        "orgId": "72de3e22-0555-4a0d-ae81-9249e0f0a1e8",
        "shortName": "Zabbix"
      },
      "references": [
        {
          "url": "https://support.zabbix.com/browse/ZBX-28067"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eUpdate the affected components to their respective fixed versions.\u003c/p\u003e"
            }
          ],
          "value": "Update the affected components to their respective fixed versions."
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Email media OAuth secret leak to Super Admin",
      "x_generator": {
        "engine": "Vulnogram 1.0.4"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "72de3e22-0555-4a0d-ae81-9249e0f0a1e8",
    "assignerShortName": "Zabbix",
    "cveId": "CVE-2026-23922",
    "datePublished": "2026-08-18T12:13:38.438Z",
    "dateReserved": "2026-01-19T14:02:54.327Z",
    "dateUpdated": "2026-08-18T16:02:15.215Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-23922",
      "date": "2026-10-02",
      "epss": "0.00275",
      "percentile": "0.18016"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unknown",
                "modules": [
                  "Frontend"
                ],
                "product": "Zabbix",
                "repo": "https://git.zabbix.com/",
                "vendor": "Zabbix",
                "versions": [
                  {
                    "changes": [
                      {
                        "at": "7.4.9",
                        "status": "unaffected"
                      }
                    ],
                    "lessThanOrEqual": "7.4.8",
                    "status": "affected",
                    "version": "7.4.0",
                    "versionType": "git"
                  }
                ]
              }
            ],
            "source": "security@zabbix.com"
          }
        ],
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "3668B6DB-3C57-4C5B-936F-BA6F3DF59F32",
                    "versionEndExcluding": "7.4.9",
                    "versionStartIncluding": "7.4.0",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "The email media OAuth field \u0027Client secret\u0027 cannot be read after saving, but a Super Admin can leak it by setting a malicious \u0027Token endpoint\u0027. Changes were made to reset the client secret upon changing the token endpoint."
          }
        ],
        "id": "CVE-2026-23922",
        "lastModified": "2026-09-08T15:18:34.610",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 4.9,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "NONE",
                "privilegesRequired": "HIGH",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N",
                "version": "3.1"
              },
              "exploitabilityScore": 1.2,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ],
          "cvssMetricV40": [
            {
              "cvssData": {
                "Automatable": "NOT_DEFINED",
                "Recovery": "NOT_DEFINED",
                "Safety": "NOT_DEFINED",
                "attackComplexity": "LOW",
                "attackRequirements": "PRESENT",
                "attackVector": "NETWORK",
                "availabilityRequirement": "NOT_DEFINED",
                "baseScore": 2.1,
                "baseSeverity": "LOW",
                "confidentialityRequirement": "NOT_DEFINED",
                "exploitMaturity": "NOT_DEFINED",
                "integrityRequirement": "NOT_DEFINED",
                "modifiedAttackComplexity": "NOT_DEFINED",
                "modifiedAttackRequirements": "NOT_DEFINED",
                "modifiedAttackVector": "NOT_DEFINED",
                "modifiedPrivilegesRequired": "NOT_DEFINED",
                "modifiedSubAvailabilityImpact": "NOT_DEFINED",
                "modifiedSubConfidentialityImpact": "NOT_DEFINED",
                "modifiedSubIntegrityImpact": "NOT_DEFINED",
                "modifiedUserInteraction": "NOT_DEFINED",
                "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
                "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
                "modifiedVulnIntegrityImpact": "NOT_DEFINED",
                "privilegesRequired": "HIGH",
                "providerUrgency": "NOT_DEFINED",
                "subAvailabilityImpact": "NONE",
                "subConfidentialityImpact": "NONE",
                "subIntegrityImpact": "NONE",
                "userInteraction": "NONE",
                "valueDensity": "NOT_DEFINED",
                "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
                "version": "4.0",
                "vulnAvailabilityImpact": "NONE",
                "vulnConfidentialityImpact": "LOW",
                "vulnIntegrityImpact": "NONE",
                "vulnerabilityResponseEffort": "NOT_DEFINED"
              },
              "source": "security@zabbix.com",
              "type": "Secondary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2026-23922",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "no"
                  },
                  {
                    "technicalImpact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-18T16:02:07.284994Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2026-08-18T13:17:21.040",
        "references": [
          {
            "source": "security@zabbix.com",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "https://support.zabbix.com/browse/ZBX-28067"
          }
        ],
        "sourceIdentifier": "security@zabbix.com",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-522"
              }
            ],
            "source": "security@zabbix.com",
            "type": "Secondary"
          }
        ]
      }
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-23922",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-08-18T16:02:07.284994Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-08-18T16:02:12.051Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unknown",
              "modules": [
                "Frontend"
              ],
              "product": "Zabbix",
              "repo": "https://git.zabbix.com/",
              "vendor": "Zabbix",
              "versions": [
                {
                  "changes": [
                    {
                      "at": "7.4.9",
                      "status": "unaffected"
                    }
                  ],
                  "lessThanOrEqual": "7.4.8",
                  "status": "affected",
                  "version": "7.4.0",
                  "versionType": "git"
                }
              ]
            }
          ],
          "configurations": [
            {
              "lang": "en",
              "supportingMedia": [
                {
                  "base64": false,
                  "type": "text/html",
                  "value": "\u003cp\u003eA Zabbix Super Admin setting a malicious OAuth token endpoint.\u003c/p\u003e"
                }
              ],
              "value": "A Zabbix Super Admin setting a malicious OAuth token endpoint."
            }
          ],
          "credits": [
            {
              "lang": "en",
              "type": "reporter",
              "value": "Zabbix wants to thank sebiee for submitting this report on the HackerOne bug bounty platform."
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "supportingMedia": [
                {
                  "base64": false,
                  "type": "text/html",
                  "value": "\u003cp\u003eThe email media OAuth field \u0027Client secret\u0027 cannot be read after saving, but a Super Admin can leak it by setting a malicious \u0027Token endpoint\u0027. Changes were made to reset the client secret upon changing the token endpoint.\u003c/p\u003e"
                }
              ],
              "value": "The email media OAuth field \u0027Client secret\u0027 cannot be read after saving, but a Super Admin can leak it by setting a malicious \u0027Token endpoint\u0027. Changes were made to reset the client secret upon changing the token endpoint."
            }
          ],
          "impacts": [
            {
              "capecId": "CAPEC-194",
              "descriptions": [
                {
                  "lang": "en",
                  "value": "CAPEC-194: Fake the Source of Data"
                }
              ]
            }
          ],
          "metrics": [
            {
              "cvssV4_0": {
                "Automatable": "NOT_DEFINED",
                "Recovery": "NOT_DEFINED",
                "Safety": "NOT_DEFINED",
                "attackComplexity": "LOW",
                "attackRequirements": "PRESENT",
                "attackVector": "NETWORK",
                "baseScore": 2.1,
                "baseSeverity": "LOW",
                "exploitMaturity": "NOT_DEFINED",
                "privilegesRequired": "HIGH",
                "providerUrgency": "NOT_DEFINED",
                "subAvailabilityImpact": "NONE",
                "subConfidentialityImpact": "NONE",
                "subIntegrityImpact": "NONE",
                "userInteraction": "NONE",
                "valueDensity": "NOT_DEFINED",
                "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N",
                "version": "4.0",
                "vulnAvailabilityImpact": "NONE",
                "vulnConfidentialityImpact": "LOW",
                "vulnIntegrityImpact": "NONE",
                "vulnerabilityResponseEffort": "NOT_DEFINED"
              },
              "format": "CVSS",
              "scenarios": [
                {
                  "lang": "en",
                  "value": "GENERAL"
                }
              ]
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-522",
                  "description": "CWE-522: Insufficiently Protected Credentials",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-08-18T12:13:38.438Z",
            "orgId": "72de3e22-0555-4a0d-ae81-9249e0f0a1e8",
            "shortName": "Zabbix"
          },
          "references": [
            {
              "url": "https://support.zabbix.com/browse/ZBX-28067"
            }
          ],
          "solutions": [
            {
              "lang": "en",
              "supportingMedia": [
                {
                  "base64": false,
                  "type": "text/html",
                  "value": "\u003cp\u003eUpdate the affected components to their respective fixed versions.\u003c/p\u003e"
                }
              ],
              "value": "Update the affected components to their respective fixed versions."
            }
          ],
          "source": {
            "discovery": "EXTERNAL"
          },
          "title": "Email media OAuth secret leak to Super Admin",
          "x_generator": {
            "engine": "Vulnogram 1.0.4"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "72de3e22-0555-4a0d-ae81-9249e0f0a1e8",
        "assignerShortName": "Zabbix",
        "cveId": "CVE-2026-23922",
        "datePublished": "2026-08-18T12:13:38.438Z",
        "dateReserved": "2026-01-19T14:02:54.327Z",
        "dateUpdated": "2026-08-18T16:02:15.215Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.

Loading…

Loading…

Loading…

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


Loading…