---
title: CVE-2019-14893
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/CVE-2019-14893
---

# CVE-2019-14893

Publication date 2 March 2020

Last updated 26 August 2025

---

Ubuntu priority

**Medium**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

## Cvss 3 Severity Score

**7.5 · High**

[Score breakdown](https://ubuntu.com/security/CVE-2019-14893#impact-score)

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## Description

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.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| jackson-databind | 26.04 LTS resolute | Not affected |
| 25.10 questing | Not affected |
| 25.04 plucky | Not affected |
| 24.10 oracular | Not affected |
| 24.04 LTS noble | Not affected |
| 23.10 mantic | Not affected |
| 23.04 lunar | Not affected |
| 22.10 kinetic | Not affected |
| 22.04 LTS jammy | Not affected |
| 21.10 impish | Not affected |
| 21.04 hirsute | Not affected |
| 20.10 groovy | Not affected |
| 20.04 LTS focal | Not affected |
| 19.10 eoan | Ignored end of life |
| 19.04 disco | Ignored end of life |
| 18.04 LTS bionic | Vulnerable |
| 16.04 LTS xenial | Not affected |
| 14.04 LTS trusty | Needs evaluation |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

7.5 · High

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Network |
  | Attack complexity | Low |
  | Privileges required | None |
  | User interaction | None |
  | Scope | Unchanged |
  | Confidentiality impact | High |
  | Integrity impact | None |
  | Availability impact | None |
* Scores

  | Parameter | Value |
  | --- | --- |
  | Base score | 7.5 · High |
  | Exploitability score | - |
  | Impact score | - |

**Vector:** CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-14893)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2019-14893)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2019-14893)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2019-14893)

### Other references

* <https://github.com/FasterXML/jackson-databind/issues/2469>
* <https://github.com/FasterXML/jackson-databind/commit/998efd708284778f29d83d7962a9bd935c228317>
* <https://www.cve.org/CVERecord?id=CVE-2019-14893>