CVE-2026-16723
Remote Code Execution in fastjson 1.2.68–1.2.83
CRITICAL 9.0
At a glance
- Source
- NVD
- EPSS
- EPSS 0.66 % · percentile 52 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- alibaba
- NVD status
- Deferred
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.
Weaknesses (CWE)
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | CRITICAL 9.0 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H | alibaba |
| CVSS 3.1 | CRITICAL 9.0 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H | NVD · alibaba-cna@list.alibaba-inc.com (Secondary) |
Advisories
- GHSA-crf3-v9rr-v7hj — fastjson has a remote code execution (RCE) vulnerability
European references
- ENISA EUVD · EUVD-2026-47929
- GCVE · GCVE-0-2026-16723
Affected products
| Product | Versions |
|---|---|
| Alibaba · Fastjson | affected 1.2.68 ≤ 1.2.83 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |