Data-Binding Vulnerability in Jackson Databind Software by FasterXML
CVE-2026-59889

6.5MEDIUM

Key Information:

Vendor

Fasterxml

Vendor
CVE Published:
14 July 2026

What is CVE-2026-59889?

A flaw in the Jackson Databind library allows JSON properties annotated with both @JsonView and @JsonUnwrapped to be manipulated by attacker-controlled JSON. This occurs due to insufficient guarding in the process of deserializing properties, exposing applications to unauthorized data access under a less-privileged active view. This vulnerability is addressed in the subsequent software releases, ensuring broader protection against such potential exploits.

Affected Version(s)

jackson-databind >= 2.18.0, < 2.18.9 < 2.18.0, 2.18.9

jackson-databind >= 2.21.0, < 2.21.5 < 2.21.0, 2.21.5

jackson-databind >= 2.22.0, < 2.22.1 < 2.22.0, 2.22.1

References

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.