Red Hat Lightwell has released com.fasterxml.jackson.core:jackson-databind 2.13.4.2-rhlw-00004 with a backported security fix.
CVE-2026-91776: jackson-databind: unbounded growth of the type id cache in TypeDeserializerBase retains every unknown raw type ID
This patched artifact is a drop-in replacement for com.fasterxml.jackson.core:jackson-databind 2.13.4.2 from Maven Central.
{
"backport_base_version": "2.13.4.2",
"remediated_version": "2.13.4.2-rhlw-00004",
"repository_url": "https://packages.redhat.com/lightwell/java/remediated/"
}
"https://github.com/project-lightwell/lightwell-osv/blob/main/advisories/RHLW-2026-bcaf0a0ae0978229.json"