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© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2026-54516

27
FAUCET Score

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.

First published: Jun 23, 2026Last modified: Jun 23, 2026

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.21.0, < 2.21.4CPE matchmatch criteria
cpe:2.3:a:fasterxml:jackson-databind:*:*:*:*:*:*:*:*
>= 3.0.0, < 3.1.4CPE matchmatch criteria
cpe:2.3:a:fasterxml:jackson-databind:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.28%
Probability of exploitation in next 30 days
EPSS Percentile
20.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0028 is in the 10th percentile among its peer group of 23,725 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

mavenpatch availablevia ghsa
Product: com.fasterxml.jackson.core:jackson-databindFixed in: 2.21.4
mavenpatch availablevia ghsa
Product: com.fasterxml.jackson.core:jackson-databindFixed in: 3.1.4
mavenpatch availablevia ghsa
Product: tools.jackson.core:jackson-databindFixed in: 3.1.4

Vendor Advisories (1)

mavenGHSA-9fxm-vc8v-hj55medium

jackson-databind's renamed @JsonIgnore'd setters can deserialize via private fields

Jun 23, 2026

References

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