CVE-2025-52999

jackson-core can throw a StackoverflowError when processing deeply nested data

Description

### Impact
With older versions of jackson-core, if you parse an input file and it has deeply nested data, Jackson could end up throwing a StackoverflowError if the depth is particularly large.

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### Patches
jackson-core 2.15.0 contains a configurable limit for how deep Jackson will traverse in an input document, defaulting to an allowable depth of 1000. Change is in https://github.com/FasterXML/jackson-core/pull/943. jackson-core will throw a StreamConstraintsException if the limit is reached.
jackson-databind also benefits from this change because it uses jackson-core to parse JSON inputs.

### Workarounds
Users should avoid parsing input files from untrusted sources.

Patch Available

Fix available through Seal Security. No upgrade required, protect your application instantly.

Fix without upgrading

Vulnerability Details

Score

8.5

Score Vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Affected Versions

com.fasterxml.jackson.core:jackson-core < 2.15.0

Severity

High

Ecosystem

Java

Publish Date

June 27, 2025

Modified Date

June 27, 2025