VULNERABILITY INTELLIGENCE
CVE-2025-70974
CVSS score10 CRITICAL
EPSS probability0.75%
CISA KEVNot currently listed
Published2026-01-09
Last modified2026-07-15
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Description
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.
Weakness classification
- cve@mitre.org: CWE-829
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c: CWE-829