PT-2026-51599 · Fasterxml · Jackson-Databind

Published 2026-06-23 · Updated 2026-06-23 · CVE-2026-54516

Mitre

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.21.0 until 2.21.4 and 3.1.4, POJOPropertiesCollector. renameProperties() allows a property with @JsonProperty("renamed") on the getter and @JsonIgnore on the setter to be renamed rather than dropped. With MapperFeature.INFER PROPERTY MUTATORS enabled (default), the private backing field is retained; during deserialization BeanDeserializerFactory.addBeanProps() sees hasField()==true, builds a FieldProperty, and makes the backing field writable. An attacker supplying the renamed JSON key writes the backing field directly, bypassing the @JsonIgnore on the setter. This vulnerability is fixed in 3.1.4.

Fix

Weakness Enumeration

CWE-915

Related Identifiers

CVE-2026-54516

Affected Products

Jackson-Databind

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2026-54516 · Security Note
• https://github.com/FasterXML/jackson-databind/commit/c3d56dd25d52319828147c5b9aeabf2d485c250a · Note
• https://github.com/FasterXML/jackson-databind/commit/e88cb17006b6af4883b973058f0bb6486e5074af · Note
• https://github.com/FasterXML/jackson-databind/pull/5967 · Note
• https://github.com/FasterXML/jackson-databind/pull/5968 · Note
• https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-9fxm-vc8v-hj55 · Note