{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-59782","assignerOrgId":"72de3e22-0555-4a0d-ae81-9249e0f0a1e8","state":"PUBLISHED","assignerShortName":"Zabbix","dateReserved":"2026-07-07T08:30:49.859Z","datePublished":"2026-10-05T10:27:34.672Z","dateUpdated":"2026-10-05T11:53:36.626Z"},"containers":{"cna":{"providerMetadata":{"orgId":"72de3e22-0555-4a0d-ae81-9249e0f0a1e8","shortName":"Zabbix","dateUpdated":"2026-10-05T10:27:34.672Z"},"title":"JavaScript preprocessing memory disclosure","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-125","description":"CWE-125: Out-of-bounds Read","type":"CWE"}]}],"impacts":[{"capecId":"CAPEC-153","descriptions":[{"lang":"en","value":"CAPEC-153: Input Data Manipulation"}]}],"affected":[{"vendor":"Zabbix","product":"Zabbix","repo":"https://git.zabbix.com/","modules":["Server","Proxy"],"versions":[{"status":"affected","version":"6.0.0","lessThanOrEqual":"6.0.47","changes":[{"at":"6.0.48","status":"unaffected"}],"versionType":"git"},{"status":"affected","version":"7.0.0","lessThanOrEqual":"7.0.28","changes":[{"at":"7.0.29","status":"unaffected"}],"versionType":"git"},{"status":"affected","version":"7.4.0","lessThanOrEqual":"7.4.12","changes":[{"at":"7.4.13","status":"unaffected"}],"versionType":"git"}],"defaultStatus":"unknown"}],"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","base64":false,"value":"<p>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.</p>"}]}],"references":[{"url":"https://support.zabbix.com/browse/ZBX-28193"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"HIGH","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"MEDIUM","baseScore":6.9,"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"}}],"configurations":[{"lang":"en","value":"An attacker with limited administrator access to the Zabbix Frontend defining malicious preprocessing rules.","supportingMedia":[{"type":"text/html","base64":false,"value":"<p>An attacker with limited administrator access to the Zabbix Frontend defining malicious preprocessing rules.</p>"}]}],"solutions":[{"lang":"en","value":"Update the affected components to their respective fixed versions.","supportingMedia":[{"type":"text/html","base64":false,"value":"<p>Update the affected components to their respective fixed versions.</p>"}]}],"credits":[{"lang":"en","value":"Zabbix wants to thank Shaber Tseng for submitting this report on the HackerOne bug bounty platform.","type":"reporter"}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 1.0.5"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-05T11:52:57.407878Z","id":"CVE-2026-59782","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-10-05T11:53:36.626Z"}}]}}