CVE-2026-29062

HIGH 7.5

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

CVSS Score

7.5

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-770
Vendor	fasterxml
Product	jackson-core
Published	Mar 6, 2026
Last Updated	Jul 15, 2026

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Affected Versions

FasterXML / jackson-core

>= 3.0.0, < 3.1.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/FasterXML/jackson-core/security/advisories/GHSA-6v53-7c9g-w56r github.com: https://github.com/FasterXML/jackson-core/pull/1554 github.com: https://github.com/FasterXML/jackson-core/commit/8b25fd67f20583e75fb09564ce1eaab06cd5a902 access.redhat.com: https://access.redhat.com/security/cve/CVE-2026-29062 bugzilla.redhat.com: https://bugzilla.redhat.com/show_bug.cgi?id=2445135 security.access.redhat.com: https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-29062.json