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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 t...

Published: Jan 9, 2026Updated: Jun 27, 2026 Sources: CVE List NVD GHSACWE-829
10.0CRITICAL
NVD MITRE
EPSS Score
0.7%
Top 51.7%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available
Self-Check
Not available

Description

FASTJSON Includes Functionality from Untrusted Control Sphere

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:CC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-829

Affected Products

Maven
package-ecosystem
com.alibaba:fastjson
OSS Libraries
Alibaba
commercial·CNaka fastjson, nacos
FastjsonMixed
OSS Libraries / generic-library

Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Initial Access
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References

https://nvd.nist.gov/vuln/detail/CVE-2025-70974
nvd.nist.gov
https://github.com/alibaba/fastjson
github.com
https://github.com/alibaba/fastjson/compare/1.2.47...1.2.48
github.com
and 10 more references View all →

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