CVE-2026-23937 (GCVE-0-2026-23937)

Vulnerability from cvelistv5 – Published: 2026-08-18 12:20 – Updated: 2026-08-18 13:34
VLAI
Title
Host PSK extraction in Zabbix API
Summary
The Zabbix API host.get action can be exploited by authenticated users to extract a host's PSK key leading to potential loss of data integrity.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 12:50 UTC
CWE
Assigner
Zabbix CNA under the mitre root
CNA scorecard B 79/100 over 20 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Zabbix Zabbix Affected: 6.0.0 , ≤ 6.0.46 (git)
Affected: 7.0.0 , ≤ 7.0.27 (git)
Affected: 7.4.0 , ≤ 7.4.11 (git)
guessed Create a notification for this product.
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-23937",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-18T12:50:57.386733Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-18T13:34:46.556Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unknown",
          "modules": [
            "API"
          ],
          "product": "Zabbix",
          "repo": "https://git.zabbix.com/",
          "vendor": "Zabbix",
          "versions": [
            {
              "changes": [
                {
                  "at": "6.0.47",
                  "status": "unaffected"
                }
              ],
              "lessThanOrEqual": "6.0.46",
              "status": "affected",
              "version": "6.0.0",
              "versionType": "git"
            },
            {
              "changes": [
                {
                  "at": "7.0.28",
                  "status": "unaffected"
                }
              ],
              "lessThanOrEqual": "7.0.27",
              "status": "affected",
              "version": "7.0.0",
              "versionType": "git"
            },
            {
              "changes": [
                {
                  "at": "7.4.12",
                  "status": "unaffected"
                }
              ],
              "lessThanOrEqual": "7.4.11",
              "status": "affected",
              "version": "7.4.0",
              "versionType": "git"
            }
          ]
        }
      ],
      "configurations": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eAn authenticated user with access to host.get API action sending crafted HTTP requests to Zabbix API. An attacker would also need access to Zabbix trapper port.\u003c/p\u003e"
            }
          ],
          "value": "An authenticated user with access to host.get API action sending crafted HTTP requests to Zabbix API. An attacker would also need access to Zabbix trapper port."
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eThe Zabbix API host.get action can be exploited by authenticated users to extract a host\u0027s PSK key leading to potential loss of data integrity.\u003c/p\u003e"
            }
          ],
          "value": "The Zabbix API host.get action can be exploited by authenticated users to extract a host\u0027s PSK key leading to potential loss of data integrity."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-122",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-122: Privilege Abuse"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 6,
            "baseSeverity": "MEDIUM",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "LOW",
            "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:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-203",
              "description": "CWE-203: Observable Discrepancy",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-18T12:20:16.552Z",
        "orgId": "72de3e22-0555-4a0d-ae81-9249e0f0a1e8",
        "shortName": "Zabbix"
      },
      "references": [
        {
          "url": "https://support.zabbix.com/browse/ZBX-28074"
        }
      ],
      "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": "INTERNAL"
      },
      "title": "Host PSK extraction in Zabbix API",
      "x_generator": {
        "engine": "Vulnogram 1.0.4"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "72de3e22-0555-4a0d-ae81-9249e0f0a1e8",
    "assignerShortName": "Zabbix",
    "cveId": "CVE-2026-23937",
    "datePublished": "2026-08-18T12:20:16.552Z",
    "dateReserved": "2026-01-19T14:03:13.686Z",
    "dateUpdated": "2026-08-18T13:34:46.556Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-23937",
      "date": "2026-10-14",
      "epss": "0.00269",
      "percentile": "0.17686"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unknown",
                "modules": [
                  "API"
                ],
                "product": "Zabbix",
                "repo": "https://git.zabbix.com/",
                "vendor": "Zabbix",
                "versions": [
                  {
                    "changes": [
                      {
                        "at": "6.0.47",
                        "status": "unaffected"
                      }
                    ],
                    "lessThanOrEqual": "6.0.46",
                    "status": "affected",
                    "version": "6.0.0",
                    "versionType": "git"
                  },
                  {
                    "changes": [
                      {
                        "at": "7.0.28",
                        "status": "unaffected"
                      }
                    ],
                    "lessThanOrEqual": "7.0.27",
                    "status": "affected",
                    "version": "7.0.0",
                    "versionType": "git"
                  },
                  {
                    "changes": [
                      {
                        "at": "7.4.12",
                        "status": "unaffected"
                      }
                    ],
                    "lessThanOrEqual": "7.4.11",
                    "status": "affected",
                    "version": "7.4.0",
                    "versionType": "git"
                  }
                ]
              }
            ],
            "source": "security@zabbix.com"
          }
        ],
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "AEE8311D-7A51-44D0-844E-6D3ABF0D63BE",
                    "versionEndExcluding": "6.0.47",
                    "versionStartIncluding": "6.0.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "0F8E0DC9-9BF9-498D-A605-DD32B108867D",
                    "versionEndExcluding": "7.0.28",
                    "versionStartIncluding": "7.0.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "78A9BAC4-F37C-4D86-8887-0E8044E1F1B2",
                    "versionEndExcluding": "7.4.12",
                    "versionStartIncluding": "7.4.0",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "The Zabbix API host.get action can be exploited by authenticated users to extract a host\u0027s PSK key leading to potential loss of data integrity."
          }
        ],
        "id": "CVE-2026-23937",
        "lastModified": "2026-09-23T14:06:41.740",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 6.5,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "HIGH",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
                "version": "3.1"
              },
              "exploitabilityScore": 2.8,
              "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": 6.0,
                "baseSeverity": "MEDIUM",
                "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": "LOW",
                "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:L/UI:N/VC:L/VI:H/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": "HIGH",
                "vulnerabilityResponseEffort": "NOT_DEFINED"
              },
              "source": "security@zabbix.com",
              "type": "Secondary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2026-23937",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "no"
                  },
                  {
                    "technicalImpact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-18T12:50:57.386733Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2026-08-18T13:17:21.973",
        "references": [
          {
            "source": "security@zabbix.com",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "https://support.zabbix.com/browse/ZBX-28074"
          }
        ],
        "sourceIdentifier": "security@zabbix.com",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-203"
              }
            ],
            "source": "security@zabbix.com",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
      "current_release_date": "2026-10-02T17:40:16+00:00",
      "cve": "CVE-2026-23937",
      "id": "CVE-2026-23937",
      "initial_release_date": "2026-08-18T12:20:16.552000+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "zabbix: Data integrity loss via PSK key extraction",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23937.json",
      "version": "3"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON
Events included in the timeline

Loading timeline…


    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.