Vulnerability 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 Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Fasterxml | Jackson-Core | >= 3.0.0, < 3.1.0 |
Related Weaknesses (CWE)
References
- https://github.com/FasterXML/jackson-core/commit/8b25fd67f20583e75fb09564ce1eaabPatch
- https://github.com/FasterXML/jackson-core/pull/1554Issue TrackingPatch
- https://github.com/FasterXML/jackson-core/security/advisories/GHSA-6v53-7c9g-w56PatchVendor Advisory
FAQ
What is CVE-2026-29062?
CVE-2026-29062 is a vulnerability with a CVSS score of 7.5 (HIGH). 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...
How severe is CVE-2026-29062?
CVE-2026-29062 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-29062?
Check the references section above for vendor advisories and patch information. Affected products include: Fasterxml Jackson-Core.