CVE-2026-16723

Remote Code Execution in fastjson 1.2.68–1.2.83

Published Jul 23, 2026 CVSS 3.1 · 9 Critical EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-crf3-v9rr-v7hj fastjson has a remote code execution (RCE) vulnerability
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Alibaba
Alibaba fastjson
Vendors & Products Alibaba
Alibaba fastjson
Type Values Removed Values Added
Description 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.
Title Remote Code Execution in fastjson 1.2.68–1.2.83
Weaknesses CWE-20
CWE-502
References
Metrics cvssV3_1

{'score': 9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
alibaba
Published
Updated
Jul 23, 2026, 1:54 PM
Reserved
Jul 23, 2026, 2:40 AM
Status
Deferred
Published
Jul 23, 2026, 9:16 AM
Modified
Oct 24, 2026, 1:10 PM