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.
Published: 2026-07-23
Score: 9 Critical
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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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

Thu, 23 Jul 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Thu, 23 Jul 2026 09:45:00 +0000

Type Values Removed Values Added
First Time appeared Alibaba
Alibaba fastjson
Vendors & Products Alibaba
Alibaba fastjson

Thu, 23 Jul 2026 08:30:00 +0000

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'}


Subscriptions

Alibaba Fastjson
cve-icon MITRE

Status: PUBLISHED

Assigner: alibaba

Published:

Updated: 2026-07-23T13:54:13.031Z

Reserved: 2026-07-23T02:40:02.606Z

Link: CVE-2026-16723

cve-icon Vulnrichment

Updated: 2026-07-23T13:54:09.781Z

cve-icon NVD

Status : Deferred

Published: 2026-07-23T09:16:26.700

Modified: 2026-07-23T15:01:24.377

Link: CVE-2026-16723

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-03T23:00:04Z

Weaknesses