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Critical 10.0Published Jan 9, 2026

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…

Updated under an hour ago ()

Does this affect you?

It affects Alibaba Fastjson and 6 other products. Add what you run to find out whether that includes you.

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, CNA)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
mitre
NVD analysis
Deferred
Record last updated
Jul 15, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
Alibaba Fastjson
alibaba:fastjson (from the name)
before 1.2.48
CNA record
2
CISA ADP
4
CISA ADP
2
CISA ADP
Red Hat Red Hat Fuse 7
redhat:jboss_fuse
7
CISA ADP
Red Hat Red Hat JBoss Enterprise Application Platform 8
redhat:jboss_enterprise_application_platform
8
CISA ADP
Versions not stated
CISA ADP

References

References

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.

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