{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-23927","assignerOrgId":"72de3e22-0555-4a0d-ae81-9249e0f0a1e8","state":"PUBLISHED","assignerShortName":"Zabbix","dateReserved":"2026-01-19T14:02:54.327Z","datePublished":"2026-05-06T06:59:42.854Z","dateUpdated":"2026-05-06T13:00:17.802Z"},"containers":{"cna":{"providerMetadata":{"orgId":"72de3e22-0555-4a0d-ae81-9249e0f0a1e8","shortName":"Zabbix","dateUpdated":"2026-05-06T06:59:42.854Z"},"title":"Agent 2 Oracle plugin TNS connection string injection via the 'service' parameter","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-522","description":"CWE-522: Insufficiently Protected Credentials","type":"CWE"}]}],"impacts":[{"capecId":"CAPEC-194","descriptions":[{"lang":"en","value":"CAPEC-194: Fake the Source of Data"}]}],"affected":[{"vendor":"Zabbix","product":"Zabbix","repo":"https://git.zabbix.com/","modules":["Agent2"],"versions":[{"status":"affected","version":"6.0.0","lessThanOrEqual":"6.0.44","changes":[{"at":"6.0.45","status":"unaffected"}],"versionType":"git"},{"status":"affected","version":"7.0.0","lessThanOrEqual":"7.0.23","changes":[{"at":"7.0.24","status":"unaffected"}],"versionType":"git"},{"status":"affected","version":"7.4.0","lessThanOrEqual":"7.4.7","changes":[{"at":"7.4.8","status":"unaffected"}],"versionType":"git"}],"defaultStatus":"unknown"}],"descriptions":[{"lang":"en","value":"A user able to connect to Agent 2 can inject an Oracle TNS connection string via the 'service' parameter. This can lead to Agent 2 connecting to an attacker-controlled server and leaking Oracle database credentials if they are saved in a named session.","supportingMedia":[{"type":"text/html","base64":false,"value":"<p>A user able to connect to Agent 2 can inject an Oracle TNS connection string via the 'service' parameter. This can lead to Agent 2 connecting to an attacker-controlled server and leaking Oracle database credentials if they are saved in a named session.</p>"}]}],"references":[{"url":"https://support.zabbix.com/browse/ZBX-27759"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"HIGH","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","subConfidentialityImpact":"HIGH","vulnIntegrityImpact":"LOW","subIntegrityImpact":"HIGH","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":5.1,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:L/VA:N/SC:H/SI:H/SA:N"}}],"configurations":[{"lang":"en","value":"An attacker sending malicious requests to Agent 2 monitoring an Oracle database.","supportingMedia":[{"type":"text/html","base64":false,"value":"<p>An attacker sending malicious requests to Agent 2 monitoring an Oracle database.</p>"}]}],"workarounds":[{"lang":"en","value":"Don't use named sessions for Oracle database monitoring.","supportingMedia":[{"type":"text/html","base64":false,"value":"<p>Don't use named sessions for Oracle database monitoring.</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 kelsier from clocktwice.com for submitting this report on the HackerOne bug bounty platform.","type":"reporter"}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 1.0.2"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-06T13:00:05.597736Z","id":"CVE-2026-23927","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":"2026-05-06T13:00:17.802Z"}}]}}