# CVE-2019-14892: Polymorphic deserialization of malicious object in jackson-databind > Attackers can execute arbitrary code via polymorphic deserialization in jackson-databind using JNDI classes. - **Severity:** High 7.5 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`) - **Exploited in the wild:** Not known - **Login needed:** Not needed - **Attackable:** Over the internet - **Victim action needed:** Not needed - **Fix available:** Yes - **Published:** 2 Mar 2020 - **Updated:** 8 Oct 2026 - **Also known as:** CLEANSTART-2026-JP41906, DEBIAN-CVE-2019-14892, GHSA-cf6r-3wgc-h863, ROOT-APP-MAVEN-CVE-2019-14892, UBUNTU-CVE-2019-14892 ## What is CVE-2019-14892? CVE-2019-14892 is a high-severity unsafe deserialization vulnerability in Fasterxml Jackson-Databind, published on 2 Mar 2020. An attacker can exploit it over the internet without logging in, with no action from the victim. ### Official description A flaw was discovered in jackson-databind in versions before 2.9.10, 2.8.11.5 and 2.6.7.3, where it would permit polymorphic deserialization of a malicious object using commons-configuration 1 and 2 JNDI classes. An attacker could use this flaw to execute arbitrary code. Weakness: CWE-502 (Deserialization of Untrusted Data), CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor) ## Which versions are affected by CVE-2019-14892? 6 open source packages ship an affected version, including com.fasterxml.jackson.core:jackson-databind. It affects 8 products. | Package | Ecosystem | Affected | Fixed in | | --- | --- | --- | --- | | `com.fasterxml.jackson.core:jackson-databind` | Maven | All versions | 2.6.7.3 | | `com.fasterxml.jackson.core:jackson-databind` | Maven | All versions | 2.6.7.3 | | `com.fasterxml.jackson.core:jackson-databind` | Maven | From 2.7.0 | 2.8.11.5 | | `com.fasterxml.jackson.core:jackson-databind` | Maven | From 2.7.0 | 2.8.11.5 | | `com.fasterxml.jackson.core:jackson-databind` | Maven | From 2.9.0 | 2.9.10 | | `com.fasterxml.jackson.core:jackson-databind` | Maven | From 2.9.0 | 2.9.10 | Products: Apache Geode, Fasterxml Jackson-Databind, Redhat Decision Manager, Redhat Jboss Data Grid, Redhat Jboss Enterprise Application Platform, Redhat Jboss Fuse, Redhat Openshift Container Platform, Redhat Process Automation. ## How do I fix CVE-2019-14892? Upgrade com.fasterxml.jackson.core:jackson-databind to a fixed version for your release line: 2.6.7.3, 2.8.11.5 or 2.9.10. ## Is CVE-2019-14892 being exploited? There is no known exploitation of CVE-2019-14892 in the wild and no public exploit code. ## Other vulnerabilities in Fasterxml Jackson-Databind - [CVE-2020-1938](https://insights.sbomify.com/CVE-2020-1938/): Apache Tomcat Improper Privilege Management (critical 9.8, exploited in the wild) - [CVE-2019-15752](https://insights.sbomify.com/CVE-2019-15752/): Docker Desktop Community Edition Privilege Escalation (high 7.8, exploited in the wild) - [CVE-2022-37021](https://insights.sbomify.com/CVE-2022-37021/): Apache Geode deserialization of untrusted data flaw when using JMX over RMI on Java 8. (critical 9.8) - [CVE-2014-0048](https://insights.sbomify.com/CVE-2014-0048/): Supply chain in docker.io (critical 9.8) - [CVE-2017-15692](https://insights.sbomify.com/CVE-2017-15692/): Apache Geode unsafe deserialization in TcpServer (critical 9.8) ## Fix prompt for AI coding agents ```text Check this codebase for CVE-2019-14892 and fix it if it is affected. What it is: CVE-2019-14892 is a high-severity unsafe deserialization vulnerability in Fasterxml Jackson-Databind, published on 2 Mar 2020. An attacker can exploit it over the internet without logging in, with no action from the victim. Exploitation: There is no known exploitation of CVE-2019-14892 in the wild and no public exploit code. Affected packages and fixed versions: - com.fasterxml.jackson.core:jackson-databind (Maven): affected all versions; fixed in 2.6.7.3 - com.fasterxml.jackson.core:jackson-databind (Maven): affected all versions; fixed in 2.6.7.3 - com.fasterxml.jackson.core:jackson-databind (Maven): affected from 2.7.0; fixed in 2.8.11.5 - com.fasterxml.jackson.core:jackson-databind (Maven): affected from 2.7.0; fixed in 2.8.11.5 - com.fasterxml.jackson.core:jackson-databind (Maven): affected from 2.9.0; fixed in 2.9.10 - com.fasterxml.jackson.core:jackson-databind (Maven): affected from 2.9.0; fixed in 2.9.10 Task: 1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies. 2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it. 3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead. 4. Run the tests and summarise what changed and why. 5. If nothing in the project is affected, say so and change nothing. Reference: https://insights.sbomify.com/CVE-2019-14892/ (Markdown: https://insights.sbomify.com/CVE-2019-14892/index.md) ``` ## Sources - CVE record: https://www.cve.org/CVERecord?id=CVE-2019-14892 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-14892 - OSV: https://osv.dev/vulnerability/CVE-2019-14892 --- From sbomify Insights: https://insights.sbomify.com/CVE-2019-14892/ Summaries are generated and may contain mistakes; the official description above is the record.