Description
jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.10.0 until 2.18.8, 2.21.4, and 3.1.4, BasicPolymorphicTypeValidator.Builder.allowIfSubTypeIsArray() allowlists any array type based only on clazz.isArray(), without validating the array's component (element) type against the configured allowlist. A PTV built with allowIfSubTypeIsArray() plus an explicit concrete-type allowlist therefore still permits EvilType[] even though EvilType is not allowlisted. When Jackson deserializes the elements and no per-element type IDs are present, it instantiates the component type directly with no further PTV check, bypassing the allowlist. This vulnerability is fixed in 2.18.8, 2.21.4, and 3.1.4.
Metrics
CVSS 3.1 8.1/10
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| FasterXML | jackson-databind | >= 2.10.0, < 2.18.8; >= 2.19.0, < 2.21.4; >= 3.0.0, < 3.1.4 |
| Red Hat | Cryostat 4 on RHEL 9 | — |
| Red Hat | Cryostat 4 on RHEL 9 | — |
| Red Hat | Cryostat 4 on RHEL 9 | — |
| Red Hat | Red Hat AMQ Broker 7.13.6 | — |
| Red Hat | Red Hat AMQ Broker 7.14.1 | — |
| Red Hat | Red Hat build of Apache Camel 4.18.3 for Spring Boot 3.5.16 | — |
| Red Hat | Red Hat Build of Apache Camel 4.18 for Quarkus 3.33 | — |
| Red Hat | Red Hat build of Keycloak 26.4 | — |
| Red Hat | Red Hat build of Keycloak 26.4 | — |
| Red Hat | Red Hat build of Keycloak 26.4 | — |
| Red Hat | Red Hat build of Keycloak 26.4.14 | — |
| Red Hat | Red Hat build of Keycloak 26.4.14 | — |
| Red Hat | Red Hat build of Keycloak 26.4.14 | — |
| Red Hat | Red Hat build of Keycloak 26.4.14 | — |
| Red Hat | Red Hat build of Keycloak 26.6 | — |
| Red Hat | Red Hat build of Keycloak 26.6 | — |
| Red Hat | Red Hat build of Keycloak 26.6 | — |
| Red Hat | Red Hat build of Keycloak 26.6.5 | — |
| Red Hat | Red Hat build of Keycloak 26.6.5 | — |
| Red Hat | Red Hat build of Keycloak 26.6.5 | — |
| Red Hat | Red Hat build of Keycloak 26.6.5 | — |
| Red Hat | Red Hat build of Keycloak 26.6.5 | — |
| Red Hat | Red Hat Certificate System 10.8 for RHEL-8 | — |
| Red Hat | Red Hat Data Grid 8.6.2 | — |
| Red Hat | Red Hat Enterprise Linux 10 | — |
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support | — |
| Red Hat | Red Hat Enterprise Linux 8 | — |
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | — |
| Red Hat | Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | — |
| Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | — |
| Red Hat | Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On | — |
| Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service | — |
| Red Hat | Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | — |
| Red Hat | Red Hat Enterprise Linux 9 | — |
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | — |
| Red Hat | Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions | — |
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support | — |
| Red Hat | Streams for Apache Kafka 3.2.1 | — |
| Red Hat | Red Hat OpenShift Dev Spaces 3.30 | — |
| Red Hat | Red Hat OpenShift Dev Spaces 3.30 | — |
| Red Hat | OpenShift Developer Tools and Services | — |
| Red Hat | OpenShift Developer Tools and Services | — |
| Red Hat | OpenShift Developer Tools and Services | — |
| Red Hat | OpenShift Developer Tools and Services | — |
| Red Hat | OpenShift Serverless | — |
| Red Hat | OpenShift Serverless | — |
| Red Hat | OpenShift Serverless | — |
| Red Hat | OpenShift Serverless | — |
| Red Hat | OpenShift Serverless | — |
References
- https://github.com/FasterXML/jackson-databind/commit/01d1692c8d0ed03e51a0e3c4f8a9e6908e4931e5Patch
- https://github.com/FasterXML/jackson-databind/commit/24529da29fdf46ff94ca38de9ebf31cd188f5e8ePatch
- https://github.com/FasterXML/jackson-databind/issues/5981Issue Tracking
- https://github.com/FasterXML/jackson-databind/issues/5983Issue Tracking, Patch
- https://github.com/FasterXML/jackson-databind/pull/5984Issue Tracking, Patch
- https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-rmj7-2vxq-3g9fPatch, Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:36839
- https://access.redhat.com/errata/RHSA-2026:40895
- https://access.redhat.com/errata/RHSA-2026:41951
- https://access.redhat.com/errata/RHSA-2026:43218
- https://access.redhat.com/errata/RHSA-2026:43400
- https://access.redhat.com/errata/RHSA-2026:44061
- https://access.redhat.com/errata/RHSA-2026:44062
- https://access.redhat.com/errata/RHSA-2026:44063
- https://access.redhat.com/errata/RHSA-2026:44064
- https://access.redhat.com/errata/RHSA-2026:44065
- https://access.redhat.com/errata/RHSA-2026:44066
- https://access.redhat.com/errata/RHSA-2026:44271
- https://access.redhat.com/errata/RHSA-2026:48095
- https://access.redhat.com/errata/RHSA-2026:48151
- https://access.redhat.com/errata/RHSA-2026:50846
- https://access.redhat.com/errata/RHSA-2026:50847
- https://access.redhat.com/errata/RHSA-2026:50848
- https://access.redhat.com/errata/RHSA-2026:50849
- https://access.redhat.com/errata/RHSA-2026:54435
- https://access.redhat.com/errata/RHSA-2026:54622
- https://access.redhat.com/errata/RHSA-2026:62260
- https://access.redhat.com/errata/RHSA-2026:66488
- https://access.redhat.com/errata/RHSA-2026:66545
- https://access.redhat.com/security/cve/CVE-2026-54513
- https://bugzilla.redhat.com/show_bug.cgi?id=2492010
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-54513.json
Timeline
- Published
- Jun 23, 2026
- Last modified
- Oct 25, 2026
- NVD status
- Modified