CVE-2019-17267 Improper Input Validation in jackson-databind

What is CVE-2019-17267?

CVE-2019-17267 is a critical unsafe deserialization vulnerability in Debian Debian Linux, published on 6 Oct 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A Polymorphic Typing issue was discovered in FasterXML jackson-databind before 2.9.10. It is related to net.sf.ehcache.hibernate.EhcacheJtaTransactionManagerLookup.

Weakness: CWE-502

Which versions are affected by CVE-2019-17267?

4 open source packages ship an affected version, including com.fasterxml.jackson.core:jackson-databind. It affects 12 products.

Products include Debian Debian Linux, Fasterxml Jackson-Databind, Netapp Active Iq Unified Manager, Netapp Oncommand Api Services, Netapp Oncommand Workflow Automation, Netapp Service Level Manager and 6 more.

How do I fix CVE-2019-17267?

Upgrade com.fasterxml.jackson.core:jackson-databind to a fixed version for your release line: 2.8.11.5 or 2.9.10.

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

Is CVE-2019-17267 being exploited?

There is no known exploitation of CVE-2019-17267 in the wild and no public exploit code.

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 CLEANSTART-2026-QU95905, DEBIAN-CVE-2019-17267, GHSA-f3j5-rmmp-3fc5, ROOT-APP-MAVEN-CVE-2019-17267, UBUNTU-CVE-2019-17267.