{"id":"CVE-2026-54516","state":"PUBLISHED","title":"jackson-databind: Renamed @JsonIgnore'd setters can deserialize via private fields","description":"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.","publishedAt":"2026-06-23T20:48:52.730Z","updatedAt":"2026-06-24T13:00:17.780Z","severity":{"score":5.3,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["FasterXML jackson-databind"],"affected":[{"vendor":"FasterXML","product":"jackson-databind","versions":[{"version":">= 2.21.0, < 2.21.4","status":"affected"},{"version":">= 3.0.0, < 3.1.4","status":"affected"}]}],"references":["https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-9fxm-vc8v-hj55","https://github.com/FasterXML/jackson-databind/pull/5967","https://github.com/FasterXML/jackson-databind/pull/5968","https://github.com/FasterXML/jackson-databind/commit/c3d56dd25d52319828147c5b9aeabf2d485c250a","https://github.com/FasterXML/jackson-databind/commit/e88cb17006b6af4883b973058f0bb6486e5074af"],"weaknesses":["CWE-915"],"ingestedAt":"2026-10-29T20:12:24.861Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/54xxx/CVE-2026-54516.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-54516","state":"PUBLISHED","datePublished":"2026-06-23T20:48:52.730Z","dateUpdated":"2026-06-24T13:00:17.780Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-06-15T18:40:01.650Z"},"containers":{"cna":{"title":"jackson-databind: Renamed @JsonIgnore'd setters can deserialize via private fields","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"FasterXML","product":"jackson-databind","versions":[{"version":">= 2.21.0, < 2.21.4","status":"affected"},{"version":">= 3.0.0, < 3.1.4","status":"affected"}]}],"references":[{"url":"https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-9fxm-vc8v-hj55","name":"https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-9fxm-vc8v-hj55","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/FasterXML/jackson-databind/pull/5967","name":"https://github.com/FasterXML/jackson-databind/pull/5967","tags":["x_refsource_MISC"]},{"url":"https://github.com/FasterXML/jackson-databind/pull/5968","name":"https://github.com/FasterXML/jackson-databind/pull/5968","tags":["x_refsource_MISC"]},{"url":"https://github.com/FasterXML/jackson-databind/commit/c3d56dd25d52319828147c5b9aeabf2d485c250a","name":"https://github.com/FasterXML/jackson-databind/commit/c3d56dd25d52319828147c5b9aeabf2d485c250a","tags":["x_refsource_MISC"]},{"url":"https://github.com/FasterXML/jackson-databind/commit/e88cb17006b6af4883b973058f0bb6486e5074af","name":"https://github.com/FasterXML/jackson-databind/commit/e88cb17006b6af4883b973058f0bb6486e5074af","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-915","lang":"en","description":"CWE-915: Improperly Controlled Modification of Dynamically-Determined Object Attributes","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-06-23T20:48:52.730Z"},"source":{"advisory":"GHSA-9fxm-vc8v-hj55","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-06-24T13:00:07.957018Z","id":"CVE-2026-54516","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-06-24T13:00:17.780Z"}}]}}}