CVE-2026-54515
jackson-databind: Case-insensitive deserialization bypasses per-property @JsonIgnoreProperties
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.
INFO
Published Date :
June 23, 2026, 8:50 p.m.
Last Modified :
June 23, 2026, 8:52 p.m.
Remotely Exploit :
No
Source :
GitHub_M
Solution
- Update jackson-databind to version 2.18.9 or later.
- Update jackson-databind to version 2.21.5 or later.
- Update jackson-databind to version 3.1.4 or later.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-54515 vulnerability anywhere in the article.