A flaw was discovered in FasterXML jackson-databind in all versions before 2.9.10 and 2.10.0, where it would permit polymorphic deserialization of malicious objects using the xalan JNDI gadget when used in conjunction with polymorphic type handling methods such as `enableDefaultTyping()` or when @JsonTypeInfo is using `Id.CLASS` or `Id.MINIMAL_CLASS` or in any other way which ObjectMapper.readValue might instantiate objects from unsafe sources. An attacker could use this flaw to execute arbitrary code.
Advisories
Source ID Title
EUVD EUVD EUVD-2020-0440 A flaw was discovered in FasterXML jackson-databind in all versions before 2.9.10 and 2.10.0, where it would permit polymorphic deserialization of malicious objects using the xalan JNDI gadget when used in conjunction with polymorphic type handling methods such as `enableDefaultTyping()` or when @JsonTypeInfo is using `Id.CLASS` or `Id.MINIMAL_CLASS` or in any other way which ObjectMapper.readValue might instantiate objects from unsafe sources. An attacker could use this flaw to execute arbitrary code.
Github GHSA Github GHSA GHSA-qmqc-x3r4-6v39 Polymorphic deserialization of malicious object in jackson-databind
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Mon, 09 Nov 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-10-08T21:13:47.910Z

Reserved: 2019-08-10T00:00:00.000Z

Link: CVE-2019-14893

cve-icon Vulnrichment

Updated: 2024-08-05T00:26:39.152Z

cve-icon NVD

Status : Modified

Published: 2020-03-02T21:15:17.520

Modified: 2026-10-08T22:16:50.270

Link: CVE-2019-14893

cve-icon Redhat

Severity : Moderate

Publid Date: 2019-09-20T00:00:00Z

Links: CVE-2019-14893 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses