CVE-2020-14195 Deserialization of untrusted data in Jackson Databind

What is CVE-2020-14195?

CVE-2020-14195 is a high-severity unsafe deserialization vulnerability in Debian Debian Linux, published on 16 Jun 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

FasterXML jackson-databind 2.x before 2.9.10.5 mishandles the interaction between serialization gadgets and typing, related to org.jsecurity.realm.jndi.JndiRealmFactory (aka org.jsecurity).

Weakness: CWE-502

Which versions are affected by CVE-2020-14195?

2 open source packages ship an affected version, including com.fasterxml.jackson.core:jackson-databind. It affects 14 products.

Products include Debian Debian Linux, Fasterxml Jackson-Databind, Netapp Active Iq Unified Manager, Netapp Steelstore Cloud Integrated Storage, Oracle Agile Product Lifecycle Management, Oracle Banking Digital Experience and 8 more.

How do I fix CVE-2020-14195?

Upgrade com.fasterxml.jackson.core:jackson-databind to 2.9.10.5 or later.

Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.

Is CVE-2020-14195 being exploited?

There is no known exploitation of CVE-2020-14195 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

Other vulnerabilities in Debian Debian Linux

• CVE-2015-3306 ProFTPD Improper Access Control Exploited Critical 10.0
• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2020-14195, GHSA-mc6h-4qgp-37qh, UBUNTU-CVE-2020-14195.