Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Fasterxml | Jackson-Databind | >= 2.8.0, < 2.18.9 |
Related Weaknesses (CWE)
References
- https://github.com/FasterXML/jackson-databind/commit/0e1b0b211f7a53baa62ba2f4c9bPatch
- https://github.com/FasterXML/jackson-databind/issues/5962Issue Tracking
- https://github.com/FasterXML/jackson-databind/issues/5964Issue TrackingPatch
- https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-5jmj-h7xmThird Party Advisory
FAQ
What is CVE-2026-54515?
CVE-2026-54515 is a vulnerability with a CVSS score of 5.3 (MEDIUM). 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...
How severe is CVE-2026-54515?
CVE-2026-54515 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-54515?
Check the references section above for vendor advisories and patch information. Affected products include: Fasterxml Jackson-Databind.