CVE-2026-54515
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.
- CVSS 3.1
- 5.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N - EPSS
- 0.4% chance of exploitation in the next 30 days; higher than 38% of CVEs (scores of 2026-10-25)
- CWE
- CWE-915
- Published
- Modified
- Record from
- the NVD, synced
Affected
- fasterxml:jackson-databind
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-5jmj-h7xm-6q6v | Maven | com.fasterxml.jackson.core:jackson-databind | >=3.1.0 <3.1.4 | 3.1.4 |
| GHSA-5jmj-h7xm-6q6v | Maven | tools.jackson.core:jackson-databind | >=3.1.0 <3.1.4 | 3.1.4 |
| GHSA-5jmj-h7xm-6q6v | Maven | com.fasterxml.jackson.core:jackson-databind | >=2.8.0 <2.18.9 | 2.18.9 |
| GHSA-5jmj-h7xm-6q6v | Maven | com.fasterxml.jackson.core:jackson-databind | >=2.19.0 <2.21.5 | 2.21.5 |
| GHSA-5jmj-h7xm-6q6v | Maven | com.fasterxml.jackson.core:jackson-databind | >=2.22.0 <2.22.1 | 2.22.1 |