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.
References
Configurations
Configuration 1 (hide)
|
History
22 Jul 2026, 12:18
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
21 Jul 2026, 12:18
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
17 Jul 2026, 13:18
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
09 Jul 2026, 13:17
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
30 Jun 2026, 03:21
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
27 Jun 2026, 21:00
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://github.com/FasterXML/jackson-databind/commit/01d1692c8d0ed03e51a0e3c4f8a9e6908e4931e5 - Patch | |
| References | () https://github.com/FasterXML/jackson-databind/commit/24529da29fdf46ff94ca38de9ebf31cd188f5e8e - Patch | |
| References | () https://github.com/FasterXML/jackson-databind/issues/5981 - Issue Tracking | |
| References | () https://github.com/FasterXML/jackson-databind/issues/5983 - Issue Tracking, Patch | |
| References | () https://github.com/FasterXML/jackson-databind/pull/5984 - Issue Tracking, Patch | |
| References | () https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-rmj7-2vxq-3g9f - Patch, Vendor Advisory | |
| First Time |
Fasterxml jackson-databind
Fasterxml |
|
| CPE | cpe:2.3:a:fasterxml:jackson-databind:*:*:*:*:*:*:*:* |
23 Jun 2026, 21:17
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-06-23 21:17
Updated : 2026-07-22 12:18
NVD link : CVE-2026-54513
Mitre link : CVE-2026-54513
CVE.ORG link : CVE-2026-54513
JSON object : View
Products Affected
fasterxml
- jackson-databind
CWE
CWE-184
Incomplete List of Disallowed Inputs
