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CVE-2026-29062

jackson-core: Nesting Depth Constraint Bypass in `UTF8DataInputJsonParser` potentially allowing Resource Exhaustion PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
FasterXML / jackson-coreaffected >= 3.0.0, < 3.1.0

CWE

CWE-770

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.

redhat-SADP

A flaw was found in jackson-core. A user could exploit this vulnerability by supplying a specially crafted JSON document with excessive nesting. This bypasses a security constraint designed to limit nesting depth, which can cause a system crash (StackOverflowError) when the document is processed. This ultimately leads to a Denial of Service (DoS) for the affected application.