{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-72676", "assignerOrgId": "271b6943-45a9-4f3a-ab4e-976f3fa05b5a", "state": "PUBLISHED", "assignerShortName": "elastic", "dateReserved": "2026-08-10T11:17:49.704Z", "datePublished": "2026-08-13T19:11:26.091Z", "dateUpdated": "2026-08-13T20:32:02.584Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "Fleet Server", "vendor": "Elastic", "versions": [{"status": "affected", "versionType": "semver", "version": "8.5.0", "lessThanOrEqual": "8.19.19"}, {"status": "affected", "versionType": "semver", "version": "9.0.0", "lessThanOrEqual": "9.4.4"}, {"status": "affected", "versionType": "semver", "version": "9.5.0"}]}], "descriptions": [{"lang": "en", "value": "Improper Control of Generation of Code ('Code Injection') (CWE-94) in Fleet Server can lead to the execution of attacker-supplied script content via Code Injection (CAPEC-242). Kibana accepted an identifier for an output configuration without restricting it to safe characters. That identifier is later placed into a server-side script that Fleet Server builds as part of routine agent policy processing, so script syntax embedded in the identifier became part of the script that was executed rather than being treated as data.", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>Improper Control of Generation of Code ('Code Injection') (CWE-94) in Fleet Server can lead to the execution of attacker-supplied script content via Code Injection (CAPEC-242). Kibana accepted an identifier for an output configuration without restricting it to safe characters. That identifier is later placed into a server-side script that Fleet Server builds as part of routine agent policy processing, so script syntax embedded in the identifier became part of the script that was executed rather than being treated as data.</p>"}]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N", "baseScore": 6.5, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "HIGH", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-94", "description": "CWE-94 Improper Control of Generation of Code ('Code Injection')", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "271b6943-45a9-4f3a-ab4e-976f3fa05b5a", "shortName": "elastic", "dateUpdated": "2026-08-13T19:11:26.091Z"}, "references": [{"url": "https://discuss.elastic.co/t/fleet-server-8-19-20-9-4-5-9-5-1-security-update-esa-2026-93/389510"}], "source": {"discovery": "Elastic"}, "title": "Improper Control of Generation of Code in Fleet Server Leading to Code Injection", "x_generator": {"engine": "Elastic CVE Publisher 1.0.0"}, "impacts": [{"capecId": "CAPEC-242", "descriptions": [{"lang": "en", "value": "CAPEC-242 Code Injection"}]}]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-08-13T20:20:49.592834Z", "id": "CVE-2026-72676", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-13T20:32:02.584Z"}}]}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Fleet Server", "vendor": "Elastic", "versions": [{"lessThanOrEqual": "8.19.19", "status": "affected", "version": "8.5.0", "versionType": "semver"}, {"lessThanOrEqual": "9.4.4", "status": "affected", "version": "9.0.0", "versionType": "semver"}, {"status": "affected", "version": "9.5.0", "versionType": "semver"}]}], "source": "security@elastic.co"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper Control of Generation of Code ('Code Injection') (CWE-94) in Fleet Server can lead to the execution of attacker-supplied script content via Code Injection (CAPEC-242). Kibana accepted an identifier for an output configuration without restricting it to safe characters. That identifier is later placed into a server-side script that Fleet Server builds as part of routine agent policy processing, so script syntax embedded in the identifier became part of the script that was executed rather than being treated as data."}], "id": "CVE-2026-72676", "lastModified": "2026-08-13T20:17:28.257", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 1.2, "impactScore": 5.2, "source": "security@elastic.co", "type": "Secondary"}]}, "published": "2026-08-13T20:17:28.257", "references": [{"source": "security@elastic.co", "url": "https://discuss.elastic.co/t/fleet-server-8-19-20-9-4-5-9-5-1-security-update-esa-2026-93/389510"}], "sourceIdentifier": "security@elastic.co", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-94"}], "source": "security@elastic.co", "type": "Secondary"}]}

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