CVE-2025-70974 | 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 fo
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.
- 🔗 github.com/alibaba/fastjson/compare/1.2.47...1.2.48
- 🔗 www.seebug.org/vuldb/ssvid-98020
- 🔗 www.cnvd.org.cn/flaw/show/CNVD-2019-22238
- 🔗 www.freebuf.com/vuls/208339.html
- 🔗 github.com/vulhub/vulhub/tree/master/fastjson/1.2.47…
- 🔗 www.cloudsek.com/blog/androxgh0st-continues-exploitation-o…
- 🔗 cert.360.cn/warning/detail
- 🔗 access.redhat.com/security/cve/CVE-2025-70974
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CVE-2025-70974 | 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 fo
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 tho