CVE-2026-29062: CWE-770: Allocation of Resources Without Limits or Throttling in FasterXML jackson-core
jackson-core contains core low-level incremental ("streaming") parser and generator abstractions used by Jackson Data Processor. From version 3.0.0 to before version 3.1.0, the UTF8DataInputJsonParser, which is used when parsing from a java.io.DataInput source, bypasses the maxNestingDepth constraint (default: 500) defined in StreamReadConstraints. A similar issue was found in ReaderBasedJsonParser. This allows a user to supply a JSON document with excessive nesting, which can cause a StackOverflowError when the structure is processed, leading to a Denial of Service (DoS). This issue has been patched in version 3.1.0.
AI Analysis
Technical Summary
CVE-2026-29062 is a resource allocation vulnerability in FasterXML jackson-core affecting versions >=3.0.0 <3.1.0. The UTF8DataInputJsonParser and ReaderBasedJsonParser components bypass the configured maximum nesting depth constraint (default 500) when parsing JSON from a java.io.DataInput source. This allows an attacker to supply deeply nested JSON documents that cause a StackOverflowError during processing, leading to denial of service. The vulnerability is addressed by patching in version 3.1.0.
Potential Impact
An attacker can cause a denial of service by supplying a JSON document with excessive nesting, triggering a StackOverflowError in the vulnerable jackson-core parsers. This impacts availability of applications using affected jackson-core versions for JSON parsing from DataInput sources.
Mitigation Recommendations
Upgrade jackson-core to version 3.1.0 or later, where the maxNestingDepth constraint enforcement is correctly applied. Patch status is official-fix as per the vendor advisory. No other mitigation is indicated.
CVE-2026-29062: CWE-770: Allocation of Resources Without Limits or Throttling in FasterXML jackson-core
Description
jackson-core contains core low-level incremental ("streaming") parser and generator abstractions used by Jackson Data Processor. From version 3.0.0 to before version 3.1.0, the UTF8DataInputJsonParser, which is used when parsing from a java.io.DataInput source, bypasses the maxNestingDepth constraint (default: 500) defined in StreamReadConstraints. A similar issue was found in ReaderBasedJsonParser. This allows a user to supply a JSON document with excessive nesting, which can cause a StackOverflowError when the structure is processed, leading to a Denial of Service (DoS). This issue has been patched in version 3.1.0.
CVSS v4.0
Score 8.7high
Affected software
pkg:maven/com.fasterxml.jackson.core/jackson-coreRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-29062 is a resource allocation vulnerability in FasterXML jackson-core affecting versions >=3.0.0 <3.1.0. The UTF8DataInputJsonParser and ReaderBasedJsonParser components bypass the configured maximum nesting depth constraint (default 500) when parsing JSON from a java.io.DataInput source. This allows an attacker to supply deeply nested JSON documents that cause a StackOverflowError during processing, leading to denial of service. The vulnerability is addressed by patching in version 3.1.0.
Potential Impact
An attacker can cause a denial of service by supplying a JSON document with excessive nesting, triggering a StackOverflowError in the vulnerable jackson-core parsers. This impacts availability of applications using affected jackson-core versions for JSON parsing from DataInput sources.
Mitigation Recommendations
Upgrade jackson-core to version 3.1.0 or later, where the maxNestingDepth constraint enforcement is correctly applied. Patch status is official-fix as per the vendor advisory. No other mitigation is indicated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-03-03T17:50:11.245Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://access.redhat.com/security/cve/CVE-2026-29062","vendor":"Red Hat"}]
Threat ID: 69aa82b7c48b3f10ff296e55
Added to database: 03/06/2026, 07:31:03 UTC
Last enriched: 07/15/2026, 08:48:52 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 1232
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