CVE-2026-29062

Name	CVE-2026-29062
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.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
jackson-core (PTS)	bullseye	2.12.1-1	fixed
	forky, sid, bookworm, trixie	2.14.1-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
jackson-core	source	(unstable)	(not affected)

Notes

- jackson-core <not-affected> (Vulnerable code specific to 3.0 series)
https://github.com/FasterXML/jackson-core/security/advisories/GHSA-6v53-7c9g-w56r
https://github.com/FasterXML/jackson-core/pull/1554
https://github.com/FasterXML/jackson-core/commit/8b25fd67f20583e75fb09564ce1eaab06cd5a902 (jackson-core-3.1.0)
CVE relates to CVE-2025-52999 but specific to the 3.0 series.