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High, CVSS 7.5

jackson-databind Deserialization of Untrusted Data vulnerability

CVE-2018-12022GHSA-cjjf-94ff-43w7

What to do

Vendor fix available. Upgrade each affected package to the fixed version on its release line (com.fasterxml.jackson.core:jackson-databind 2.9.6, 2.8.11.2, 2.7.9.4), redeploy, then verify what is actually installed.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

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Affected packages

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS
7.5 · CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
  • CVE-2018-12022: 7.29% estimated exploitation activity in the next 30 days; percentile 94.37 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.
Source description

As published by the source; long descriptions are shortened.

An issue was discovered in FasterXML jackson-databind prior to 2.7.9.4, 2.8.11.2, and 2.9.6. When Default Typing is enabled (either globally or for a specific property), the service has the Jodd-db jar (for database access for the Jodd framework) in the classpath, and an attacker can provide an LDAP service to access, it is possible to make the service execute a malicious payload.

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 1 · created ·

    Published from ghsa record GHSA-cjjf-94ff-43w7

Agent brief

Preview the exact text before you copy it. Commands are read-only suggestions; review them before running anything.

# Patch Next advisory brief: CVE-2018-12022

Advisory: jackson-databind Deserialization of Untrusted Data vulnerability
IDs: CVE-2018-12022, GHSA-cjjf-94ff-43w7
Record: https://patchnext.com/advisories/cve-2018-12022 (revision 1, source checked 26 Oct 2026, 16:26 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: High (CVSS 7.5)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: com.fasterxml.jackson.core:jackson-databind 2.9.6, 2.8.11.2, 2.7.9.4. A vendor fix does not mean a deployment is fixed.

## Affected components
- Maven com.fasterxml.jackson.core:jackson-databind: affected >= 2.9.0, < 2.9.6; <= 2.7.9.3; >= 2.8.0, <= 2.8.11.1; fixed in 2.7.9.4, 2.9.6, 2.8.11.2

## Suggested inspection (read-only)
- Maven com.fasterxml.jackson.core:jackson-databind: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on com.fasterxml.jackson.core:jackson-databind.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-cjjf-94ff-43w7 (GitHub-reviewed advisory GHSA-cjjf-94ff-43w7 lists affected ranges: Maven com.fasterxml.jackson.core:jackson-databind >=2.9.0 =0 =2.8.0 <=2.8.11.1)

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