{ "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": "2026-07-23T13:54:13.031Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "0cc2b86d-1d45-434d-ae74-11d09ec61ae8", "shortName": "alibaba", "dateUpdated": "2026-07-23T08:26:24.453Z" }, "title": "Remote Code Execution in fastjson 1.2.68–1.2.83", "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 stock default configuration — no AutoType enablement required, no classpath gadget required.", "supportingMedia": [ { "type": "text/html", "base64": false, "value": "
A remote code execution (RCE) vulnerability exists in fastjson 1.2.68 through 1.2.83. This vulnerability is exploitable under fastjson's stock default configuration — no AutoType enablement required, no classpath gadget required.
" } ] } ], "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" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-07-23T13:54:05.935678Z", "id": "CVE-2026-16723", "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": "2026-07-23T13:54:13.031Z" } } ] } }