CVE-2026-54518

Name	CVE-2026-54518
Description	jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.21.0 until 2.21.4 and 3.1.4, UnwrappedPropertyHandler.processUnwrappedCreatorProperties() replays buffered JSON into creator parameters but never consults prop.visibleInView(activeView). The normal property-based creator path gates creator properties on the active view, but this unwrapped-creator replay path bypasses that check, so a constructor parameter annotated with both @JsonView(AdminView.class) and @JsonUnwrapped is populated from attacker JSON even when a more restrictive view is active. This vulnerability is fixed in 2.21.4 and 3.1.4.
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-databind (PTS)	bullseye	2.12.1-1+deb11u1	vulnerable
	bullseye (security)	2.12.1-1+deb11u2	vulnerable
	bookworm	2.14.0-1	vulnerable
	bookworm (security)	2.14.0-1+deb12u1	vulnerable
	trixie	2.14.0+ds-1	vulnerable
	trixie (security)	2.14.0+ds-1+deb13u1	vulnerable
	forky, sid	2.14.0+ds-2	vulnerable

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
jackson-databind	source	(unstable)	(unfixed)

Notes

https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-rcqc-6cw3-h962
https://github.com/FasterXML/jackson-databind/pull/5971
https://github.com/FasterXML/jackson-databind/pull/5973
https://github.com/FasterXML/jackson-databind/commit/721fa07ebbd4aab4a659a1a68940878315c3e341 (jackson-databind-2.21.4)
https://github.com/FasterXML/jackson-databind/commit/d633bc038f200c1397c07f1a2b46f58e72c91eea (jackson-databind-3.1.4)