CVE-2026-59782 (GCVE-0-2026-59782)
Vulnerability from cvelistv5
Published
2026-10-05 10:27
Modified
2026-10-05 11:53
CWE
Summary
The JavaScript preprocessing (Duktape) engine on Zabbix server has a vulnerability where a limited administrator is able to read raw heap data potentially resulting in leaked data from other running preprocessors not available to said administrator.
Impacted products
Vendor Product Version
Zabbix Zabbix Version: 6.0.0
Version: 7.0.0
Version: 7.4.0
Create a notification for this product.
Show details on NVD website


{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-59782",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-05T11:52:57.407878Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-05T11:53:36.626Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unknown",
          "modules": [
            "Server",
            "Proxy"
          ],
          "product": "Zabbix",
          "repo": "https://git.zabbix.com/",
          "vendor": "Zabbix",
          "versions": [
            {
              "changes": [
                {
                  "at": "6.0.48",
                  "status": "unaffected"
                }
              ],
              "lessThanOrEqual": "6.0.47",
              "status": "affected",
              "version": "6.0.0",
              "versionType": "git"
            },
            {
              "changes": [
                {
                  "at": "7.0.29",
                  "status": "unaffected"
                }
              ],
              "lessThanOrEqual": "7.0.28",
              "status": "affected",
              "version": "7.0.0",
              "versionType": "git"
            },
            {
              "changes": [
                {
                  "at": "7.4.13",
                  "status": "unaffected"
                }
              ],
              "lessThanOrEqual": "7.4.12",
              "status": "affected",
              "version": "7.4.0",
              "versionType": "git"
            }
          ]
        }
      ],
      "configurations": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eAn attacker with limited administrator access to the Zabbix Frontend defining malicious preprocessing rules.\u003c/p\u003e"
            }
          ],
          "value": "An attacker with limited administrator access to the Zabbix Frontend defining malicious preprocessing rules."
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "Zabbix wants to thank Shaber Tseng for submitting this report on the HackerOne bug bounty platform."
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eThe JavaScript preprocessing (Duktape) engine on Zabbix server has a vulnerability where a limited administrator is able to read raw heap data potentially resulting in leaked data from other running preprocessors not available to said administrator.\u003c/p\u003e"
            }
          ],
          "value": "The JavaScript preprocessing (Duktape) engine on Zabbix server has a vulnerability where a limited administrator is able to read raw heap data potentially resulting in leaked data from other running preprocessors not available to said administrator."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-153",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-153: Input Data Manipulation"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 6.9,
            "baseSeverity": "MEDIUM",
            "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:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "NONE",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-125",
              "description": "CWE-125: Out-of-bounds Read",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-05T10:27:34.672Z",
        "orgId": "72de3e22-0555-4a0d-ae81-9249e0f0a1e8",
        "shortName": "Zabbix"
      },
      "references": [
        {
          "url": "https://support.zabbix.com/browse/ZBX-28193"
        }
      ],
      "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": "JavaScript preprocessing memory disclosure",
      "x_generator": {
        "engine": "Vulnogram 1.0.5"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "72de3e22-0555-4a0d-ae81-9249e0f0a1e8",
    "assignerShortName": "Zabbix",
    "cveId": "CVE-2026-59782",
    "datePublished": "2026-10-05T10:27:34.672Z",
    "dateReserved": "2026-07-07T08:30:49.859Z",
    "dateUpdated": "2026-10-05T11:53:36.626Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-59782\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-10-05T11:52:57.407878Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-10-05T11:53:27.419Z\"}}], \"cna\": {\"title\": \"JavaScript preprocessing memory disclosure\", \"source\": {\"discovery\": \"EXTERNAL\"}, \"credits\": [{\"lang\": \"en\", \"type\": \"reporter\", \"value\": \"Zabbix wants to thank Shaber Tseng for submitting this report on the HackerOne bug bounty platform.\"}], \"impacts\": [{\"capecId\": \"CAPEC-153\", \"descriptions\": [{\"lang\": \"en\", \"value\": \"CAPEC-153: Input Data Manipulation\"}]}], \"metrics\": [{\"format\": \"CVSS\", \"cvssV4_0\": {\"Safety\": \"NOT_DEFINED\", \"version\": \"4.0\", \"Recovery\": \"NOT_DEFINED\", \"baseScore\": 6.9, \"Automatable\": \"NOT_DEFINED\", \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"valueDensity\": \"NOT_DEFINED\", \"vectorString\": \"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N\", \"exploitMaturity\": \"NOT_DEFINED\", \"providerUrgency\": \"NOT_DEFINED\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"attackRequirements\": \"NONE\", \"privilegesRequired\": \"HIGH\", \"subIntegrityImpact\": \"NONE\", \"vulnIntegrityImpact\": \"NONE\", \"subAvailabilityImpact\": \"NONE\", \"vulnAvailabilityImpact\": \"NONE\", \"subConfidentialityImpact\": \"NONE\", \"vulnConfidentialityImpact\": \"HIGH\", \"vulnerabilityResponseEffort\": \"NOT_DEFINED\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"repo\": \"https://git.zabbix.com/\", \"vendor\": \"Zabbix\", \"modules\": [\"Server\", \"Proxy\"], \"product\": \"Zabbix\", \"versions\": [{\"status\": \"affected\", \"changes\": [{\"at\": \"6.0.48\", \"status\": \"unaffected\"}], \"version\": \"6.0.0\", \"versionType\": \"git\", \"lessThanOrEqual\": \"6.0.47\"}, {\"status\": \"affected\", \"changes\": [{\"at\": \"7.0.29\", \"status\": \"unaffected\"}], \"version\": \"7.0.0\", \"versionType\": \"git\", \"lessThanOrEqual\": \"7.0.28\"}, {\"status\": \"affected\", \"changes\": [{\"at\": \"7.4.13\", \"status\": \"unaffected\"}], \"version\": \"7.4.0\", \"versionType\": \"git\", \"lessThanOrEqual\": \"7.4.12\"}], \"defaultStatus\": \"unknown\"}], \"solutions\": [{\"lang\": \"en\", \"value\": \"Update the affected components to their respective fixed versions.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\u003cp\u003eUpdate the affected components to their respective fixed versions.\u003c/p\u003e\", \"base64\": false}]}], \"references\": [{\"url\": \"https://support.zabbix.com/browse/ZBX-28193\"}], \"x_generator\": {\"engine\": \"Vulnogram 1.0.5\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"The JavaScript preprocessing (Duktape) engine on Zabbix server has a vulnerability where a limited administrator is able to read raw heap data potentially resulting in leaked data from other running preprocessors not available to said administrator.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\u003cp\u003eThe JavaScript preprocessing (Duktape) engine on Zabbix server has a vulnerability where a limited administrator is able to read raw heap data potentially resulting in leaked data from other running preprocessors not available to said administrator.\u003c/p\u003e\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-125\", \"description\": \"CWE-125: Out-of-bounds Read\"}]}], \"configurations\": [{\"lang\": \"en\", \"value\": \"An attacker with limited administrator access to the Zabbix Frontend defining malicious preprocessing rules.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\u003cp\u003eAn attacker with limited administrator access to the Zabbix Frontend defining malicious preprocessing rules.\u003c/p\u003e\", \"base64\": false}]}], \"providerMetadata\": {\"orgId\": \"72de3e22-0555-4a0d-ae81-9249e0f0a1e8\", \"shortName\": \"Zabbix\", \"dateUpdated\": \"2026-10-05T10:27:34.672Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-59782\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-10-05T11:53:36.626Z\", \"dateReserved\": \"2026-07-07T08:30:49.859Z\", \"assignerOrgId\": \"72de3e22-0555-4a0d-ae81-9249e0f0a1e8\", \"datePublished\": \"2026-10-05T10:27:34.672Z\", \"assignerShortName\": \"Zabbix\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.


Loading…

Loading…