CVE-2026-29062 jackson-core: Nesting Depth Constraint Bypass in `UTF8DataInputJsonParser` potentially allowing Resource Exhaustion

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 constrai...

CVE-2026-29062 jackson-core: Nesting Depth Constraint Bypass in `UTF8DataInputJsonParser` potentially allowing Resource Exhaustion

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 constrai...

CVE-2026-29062

CVE-2026-29062 affects jackson-core: from 3.0.0 up to before 3.1.0, the UTF8DataInputJsonParser (used when parsing from java.io.DataInput) bypasses the StreamReadConstraints maxNestingDepth (default 500), allowing excessively nested JSON to cause a StackOverflowError and a resulting DoS. A simila...

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

Summary 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...