CVE-2026-29062: Fasterxml Jackson-Core

High severity, CVSS 7.5. EPSS: 0.8% chance of exploitation in the next 30 days.

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 products

• Fasterxml Jackson-Core: from 3.0.0, before 3.1.0 (fixed in 3.1.0)

Published 2026-03-06. Last modified 2026-07-15.