Stack Overflow Error in Jackson Data Processor's Core Library
CVE-2025-52999

8.7HIGH

Key Information:

Vendor

Fasterxml

Status
Jackson-core
Vendor
CVE Published:
25 June 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-52999?

The jackson-core library, utilized by the Jackson Data Processor, has a vulnerability related to the handling of deeply nested data structures. In versions before 2.15.0, parsing an input file with excessive nesting can lead to a StackOverflowError, disrupting application functionality. The updated version introduces a configurable depth limit, set by default to 1000 levels. If this limit is exceeded, a StreamConstraintsException will be thrown, preventing application crashes. Users are advised to avoid parsing untrusted input files as a precautionary measure.

Affected Version(s)

jackson-core < 2.15.0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

jackson
Created by sassoftware

References

https://github.com/FasterXML/jackson-core/security/adviso...
x_refsource_CONFIRM
https://github.com/FasterXML/jackson-core/pull/943
x_refsource_MISC

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.