CVE-2025-70974Fastjson before 1.2.48 mishandles autoType because, when an @type key is in a JSON document, and the value of that key is the name of a Java class, there may be calls to certain public methods of tha…
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No exploitation reported and no EPSS estimate yet.
Fastjson before 1.2.48 mishandles autoType because, when an @type key is in a JSON document, and the value of that key is the name of a Java class, there may be calls to certain public methods of that class. Depending on the behavior of those methods, there may be JNDI injection with an attacker-supplied payload located elsewhere in that JSON document. This was exploited in the wild in 2023 through 2025. NOTE: this issue exists because of an incomplete fix for CVE-2017-18349. Also, a later bypass is covered by CVE-2022-25845.
- CVSS
- 10.0 CRITICAL (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
- Weakness (CWE)
- CWE-829
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Deferred
- Record last updated
- Jul 15, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
No affected products are listed yet.
References
- https://cert.360.cn/warning/detail?id=7240aeab581c6dc2c9c5350756079955
- https://github.com/alibaba/fastjson/compare/1.2.47...1.2.48
- https://github.com/vulhub/vulhub/tree/master/fastjson/1.2.47-rce
- https://www.cloudsek.com/blog/androxgh0st-continues-exploitation-operators-compromise-a-us-university-for-hosting-c2-logger
- https://www.cnvd.org.cn/flaw/show/CNVD-2019-22238
- https://www.freebuf.com/vuls/208339.html
- https://www.seebug.org/vuldb/ssvid-98020
- https://access.redhat.com/security/cve/CVE-2025-70974
- https://bugzilla.redhat.com/show_bug.cgi?id=2428203
- https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-70974.json
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.