Improperly Controlled Modification of Dynamically-Determined Object Attributes in jackson-databind - CVE-2026-54516

Vulnerability identifier: #VU139155

CSH Severity: Medium

CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-54516

CWE-ID: CWE-915

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to modify object attributes during deserialization.

The vulnerability exists due to improperly controlled modification of dynamically-determined object attributes in POJO deserialization handling when processing crafted JSON input for properties with a renamed getter and an ignored setter. A remote attacker can supply a renamed JSON key to modify object attributes during deserialization.

This issue occurs with private backing fields retained through property inference, allowing the setter's ignore annotation to be bypassed.

jackson-databind
Netezza Appliance
Db2 Bridge
CICS Transaction Gateway Desktop Edition
IBM Sterling Connect:Direct Web Services
IBM Common Licensing
Red Hat build of Quarkus
Fedora
jackson-parent
jackson-bom
jackson-core
jackson-databind
jackson-jaxrs-providers
jackson-modules-base
jackson-annotations
fasterxml-oss-parent
EntireX

Install security update from vendor's website.

jackson-databind - addressed in versions 2.21.4, 3.1.4
Netezza Appliance - update to 1.0.2.0
Db2 Bridge - update to 1.1.5.1
IBM Sterling Connect:Direct Web Services - addressed in versions 6.3.0.20, 6.4.0.9
IBM Common Licensing - update to 9.1
jackson-parent - update to 2.21-1.fc45
jackson-bom - update to 2.21.5-1.fc45
jackson-core - update to 2.21.5-1.fc45
jackson-databind - update to 2.21.5-1.fc45
jackson-jaxrs-providers - update to 2.21.5-1.fc45
jackson-modules-base - update to 2.21.5-1.fc45
jackson-annotations - update to 2.21-6.fc45
Red Hat build of Quarkus - addressed in versions 3.27.4.SP2, 3.33.2.SP2
EntireX - update to 12.1.0.0003-0779
fasterxml-oss-parent - update to 75-1.fc45

• https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-9fxm-vc8v-hj55

• Multiple vulnerabilities in jackson-databind
• Fedora 45 update for fasterxml-oss-parent, jackson-annotations, jackson-bom, jackson-core, jackson-databind, jackson-jaxrs-providers, jackson-modules-base, jackson-parent
• Multiple vulnerabilities in IBM Sterling Connect:Direct Web Services
• Multiple vulnerabilities in CICS Transaction Gateway Desktop Edition
• Multiple vulnerabilities in IBM EntireX
• Multiple vulnerabilities in IBM Db2 Bridge
• Multiple vulnerabilities in IBM Netezza Appliance
• Multiple vulnerabilities in Red Hat build of Quarkus 3.27.4
• Multiple vulnerabilities in Red Hat build of Quarkus 3.33.2
• Multiple vulnerabilities in IBM Common Licensing