CVE-2026-16723 (GCVE-0-2026-16723)

Vulnerability from cvelistv5 – Published: 2026-07-23 08:26 – Updated: 2026-07-23 13:54
VLAI Previdian
Title
Remote Code Execution in fastjson 1.2.68–1.2.83
Summary
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.
Severity
9 (Critical)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-23 13:54 UTC
CWE
  • CWE-20 - Improper input validation
  • CWE-502 - Deserialization of untrusted data
Assigner
alibaba CNA under the mitre root
CNA scorecard – unranked: 2 records in the last 180 days, 10 needed details
References
URL Tags
https://github.com/alibaba/fastjson2/wiki/Securit… vendor-advisorymitigation
Impacted products
Vendor Product Version CPE status
Alibaba Fastjson Affected: 1.2.68 , ≤ 1.2.83 (custom)
guessed Create a notification for this product.
Credits
Kirill Firsov of FearsOff Cybersecurity
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: cabad5d5-7de5-408d-a634-4ff873a0cfa5

Vulnerability ID: CVE-2026-16723

Status: Confirmed

Status Updated: 2026-07-25 02:23 UTC

Exploited: Yes

Timestamps
First Seen: 2026-07-25
Asserted: 2026-07-25
Scope
Notes: Remote Code Execution in fastjson 1.2.68–1.2.83 | Affected: Alibaba / Fastjson | CVSS: 9.0 (CRITICAL) | EPSS: 0.00413 | Used in malware: unknown | Not yet in CISA KEV: True
Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: kevintel

Details
Feed KEVIntel (kevintel.com)
Title Remote Code Execution in fastjson 1.2.68–1.2.83
Vendor Alibaba
Product Fastjson
Added Date 2026-07-25T02:23:23.000Z
Cvss Score 9.0
Epss Score 0.00413
Cvss Severity CRITICAL
Epss Percentile 0.3383
Used In Malware unknown
Ahead Of Cisa Kev None
Not Yet In Cisa Kev True
References
Created: 2026-07-25 12:00 UTC | Updated: 2026-07-25 12:00 UTC
Show details on NVD website
To clipboard 

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