CVE-2026-54516

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.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/FasterXML/jackson-databind/commit/c3d56dd25d52319828147c5b9aeabf2d485c250a	Patch
https://github.com/FasterXML/jackson-databind/commit/e88cb17006b6af4883b973058f0bb6486e5074af	Patch
https://github.com/FasterXML/jackson-databind/pull/5967	Issue Tracking Patch
https://github.com/FasterXML/jackson-databind/pull/5968	Issue Tracking Patch
https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-9fxm-vc8v-hj55	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:fasterxml:jackson-databind::::::::
	cpe:2.3:a:fasterxml:jackson-databind::::::::

History

No history.

Information

Published : 2026-06-23 21:17

Updated : 2026-06-27 20:52

NVD link : CVE-2026-54516

Mitre link : CVE-2026-54516

CVE.ORG link : CVE-2026-54516

JSON object : View

Products Affected

fasterxml

jackson-databind

CWE

CWE-915

Improperly Controlled Modification of Dynamically-Determined Object Attributes

{"id": "CVE-2026-54516", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-54516", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-06-24T13:00:07.957018Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 3.9}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "FasterXML", "product": "jackson-databind", "versions": [{"status": "affected", "version": ">= 2.21.0, < 2.21.4"}, {"status": "affected", "version": ">= 3.0.0, < 3.1.4"}]}]}], "published": "2026-06-23T21:17:02.723", "references": [{"url": "https://github.com/FasterXML/jackson-databind/commit/c3d56dd25d52319828147c5b9aeabf2d485c250a", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/FasterXML/jackson-databind/commit/e88cb17006b6af4883b973058f0bb6486e5074af", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/FasterXML/jackson-databind/pull/5967", "tags": ["Issue Tracking", "Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/FasterXML/jackson-databind/pull/5968", "tags": ["Issue Tracking", "Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-9fxm-vc8v-hj55", "tags": ["Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-915"}]}], "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."}], "lastModified": "2026-06-27T20:52:12.103", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:fasterxml:jackson-databind:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0D4E698D-DF81-4E00-9173-ABBE3E8D82E4", "versionEndExcluding": "2.21.4", "versionStartIncluding": "2.21.0"}, {"criteria": "cpe:2.3:a:fasterxml:jackson-databind:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5C0F99DE-1DB7-4873-83F9-6CEF8E91F33C", "versionEndExcluding": "3.1.4", "versionStartIncluding": "3.0.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}