CVE-2026-54515 Details
Description
jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.8.0 until 2.18.9, 2.21.5, and 3.1.4, in BeanDeserializerBase.createContextual(), per-property @JsonIgnoreProperties exclusions are applied by _handleByNameInclusion(), producing a contextual deserializer whose BeanPropertyMap has the ignored properties removed. The subsequent per-property case-insensitivity block (triggered by @JsonFormat(ACCEPT_CASE_INSENSITIVE_PROPERTIES)) rebuilds from this._beanProperties (the original, unfiltered map) instead of contextual._beanProperties, then overwrites the filtered map — restoring every property _handleByNameInclusion had just removed. The ignored property becomes writable again. This vulnerability is fixed in 2.18.9, 2.21.5, and 3.1.4.
A vulnerability in Jackson Databind's deserialization process can lead to unintended property writes. This issue affects versions 2.8.0 prior to 2.18.9, 2.19.0 prior to 2.21.5, and 3.1.0 prior to 3.1.4. The problem arises in the BeanDeserializerBase.createContextual() method, where case-insensitive property handling can inadvertently restore properties that were meant to be ignored, allowing them to be written from untrusted JSON.
Users can upgrade to Jackson Databind versions 2.18.9, 2.21.5, or 3.1.4 to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jun 24, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-915 | Improperly Controlled Modification of Dynamically-Determined Object Attributes | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| fasterxml jackson-databind | >= 2.8.0, < 2.18.9 >= 2.19.0, < 2.21.5 >= 3.0.0, < 3.1.4 2.22.0 |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 29, 2026 | Initial Analysis | [email protected] |
| Jun 24, 2026 | CVE Modified | CISA-ADP |
| Jun 23, 2026 | New CVE Received | [email protected] |