FasterXML jackson-core up to 2.14.x stack-based overflow

Summaryinfo

A vulnerability was found in FasterXML jackson-core up to 2.14.x and classified as critical. Impacted is an unknown function. Executing a manipulation can lead to stack-based overflow. This vulnerability is tracked as CVE-2025-52999. The attack can be launched remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in FasterXML jackson-core up to 2.14.x. This vulnerability affects an unknown code. The manipulation with an unknown input leads to a stack-based overflow vulnerability. The CWE definition for the vulnerability is CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). As an impact it is known to affect availability. CVE summarizes:

jackson-core contains core low-level incremental ("streaming") parser and generator abstractions used by Jackson Data Processor. In versions prior to 2.15.0, if a user parses an input file and it has deeply nested data, Jackson could end up throwing a StackoverflowError if the depth is particularly large. 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. 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. As a workaround, users should avoid parsing input files from untrusted sources.

The advisory is shared for download at github.com. This vulnerability was named CVE-2025-52999 since 06/24/2025. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 241116 (RHEL 8 : Red Hat Product OCP Tools 4.13 OpenShift Jenkins (RHSA-2025:10119)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 2.15.0 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (241116) and CERT Bund (WID-SEC-2025-1405). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

• Amazon Linux 2
• Red Hat Enterprise Linux
• Oracle Linux
• IBM Business Automation Workflow
• Red Hat OpenShift
• RESF Rocky Linux
• FasterXML Jackson
• Red Hat Single Sign On
• Splunk Splunk Enterprise
• Dell ECS

Productinfo

Type

• Programming Language Software

Vendor

• FasterXML

Name

• jackson-core

Version

• 2.0
• 2.1
• 2.2
• 2.3
• 2.4
• 2.5
• 2.6
• 2.7
• 2.8
• 2.9
• 2.10
• 2.11
• 2.12
• 2.13
• 2.14

License

• open-source

Website

• Product: https://github.com/FasterXML/jackson-core/

CPE 2.3info

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CPE 2.2info

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Entryinfo

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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