CVE-2026-54515
jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor.
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| maven | com.fasterxml.jackson.core:jackson-databind | >= 3.1.0, < 3.1.4 | 3.1.4 |
| maven | tools.jackson.core:jackson-databind | >= 3.1.0, < 3.1.4 | 3.1.4 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Fasterxml | Jackson-Databind | from 2.8.0 before 2.18.9 from 2.19.0 before 2.21.5 from 3.0.0 before 3.1.4 Version 2.22.0 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-5jmj-h7xm-6q6v
- https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-5jmj-h7xm-6q6v
- https://github.com/FasterXML/jackson-databind/issues/5962
- https://github.com/FasterXML/jackson-databind/issues/5964
- https://github.com/FasterXML/jackson-databind/commit/0e1b0b211f7a53baa62ba2f4c9bd006c7bf4d5fa
- https://nvd.nist.gov/vuln/detail/CVE-2026-54515