CVE-2019-14893Network attack vector

Code execution via permitted Xalan JNDI gadget

Published Mar 2, 2020 · Updated Aug 5, 2024

Unsafe deserialization in FasterXML jackson-databind 2.8 before 2.8.11.5 or 2.9 before 2.9.10 allows attackers to execute code. SubTypeValidator permits org.apache.xalan.lib.sql.JNDIConnectionPool as a polymorphic subtype, allowing crafted data to instantiate the JNDI gadget. Exploitation requires attacker-controlled input to reach ObjectMapper.readValue with default typing or JsonTypeInfo using Id.CLASS or Id.MINIMAL_CLASS, enabling code execution in the host application.

CVSS severity9.8
Critical
EPSS probability4.09%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unsafe deserialization in FasterXML jackson-databind 2.8 before 2.8.11.5 or 2.9 before 2.9.10 allows attackers to execute code. SubTypeValidator permits org.apache.xalan.lib.sql.JNDIConnectionPool as a polymorphic subtype, allowing crafted data to instantiate the JNDI gadget. Exploitation requires attacker-controlled input to reach ObjectMapper.readValue with default typing or JsonTypeInfo using Id.CLASS or Id.MINIMAL_CLASS, enabling code execution in the host application.

The record

CVE
CVE-2019-14893
Published
Mar 2, 2020
Updated
Aug 5, 2024
Vendor
FasterXML
Product
jackson-databind
Classifications
CWE-502
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 2, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.10.0
  2. Affected versionversion=2.9.10

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

FasterXML · jackson-databindversion=2.10.0; version=2.9.10

Published CVSS scores

9.8GitLab Advisory DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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