{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-16723", "assignerOrgId": "0cc2b86d-1d45-434d-ae74-11d09ec61ae8", "state": "PUBLISHED", "assignerShortName": "alibaba", "dateReserved": "2026-07-23T02:40:02.606Z", "datePublished": "2026-07-23T08:26:24.453Z", "dateUpdated": "2026-07-23T08:26:24.453Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "0cc2b86d-1d45-434d-ae74-11d09ec61ae8", "shortName": "alibaba", "dateUpdated": "2026-07-23T08:26:24.453Z"}, "title": "Remote Code Execution in fastjson 1.2.68\u20131.2.83", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-20", "description": "CWE-20 Improper input validation", "type": "CWE"}]}, {"descriptions": [{"lang": "en", "cweId": "CWE-502", "description": "CWE-502 Deserialization of untrusted data", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-586", "descriptions": [{"lang": "en", "value": "CAPEC-586 Object Injection"}]}], "affected": [{"vendor": "Alibaba", "product": "Fastjson", "versions": [{"status": "affected", "version": "1.2.68", "lessThanOrEqual": "1.2.83", "versionType": "custom"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "A remote code execution (RCE) vulnerability exists in fastjson 1.2.68 through 1.2.83. This vulnerability is exploitable under fastjson's\u00a0stock default configuration\u00a0\u2014 no AutoType enablement required, no classpath gadget required.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>A remote code execution (RCE) vulnerability exists in fastjson 1.2.68 through 1.2.83. This vulnerability is exploitable under fastjson's&nbsp;<strong>stock default configuration</strong>&nbsp;\u2014 no AutoType enablement required, no classpath gadget required.</p>"}]}], "references": [{"url": "https://github.com/alibaba/fastjson2/wiki/Security-Advisory:-Remote-Code-Execution-in-fastjson-1.2.68%E2%80%931.2.83", "tags": ["vendor-advisory", "mitigation"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseSeverity": "CRITICAL", "baseScore": 9, "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H"}}], "credits": [{"lang": "en", "value": "Kirill Firsov of FearsOff Cybersecurity", "type": "finder"}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.4"}}}}

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{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[1.2.68,1.2.83]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Fastjson", "source": "cna", "vendor": "Alibaba"}, "product": "fastjson", "vendor": "alibaba"}], "created": "2026-07-23T09:30:16.625024+00:00", "updated": "2026-07-23T09:30:16.625061+00:00", "vendors": ["alibaba", "alibaba$PRODUCT$fastjson"]}