CVE•Published 2019-10-01•Modified 2026-10-08•1 article on news•5 live references•NVD data

CVE-2019-16942Fasterxml · Jackson-databind

Vulnerability data via NVD (ingested)

CVSS v3.1

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS percentile

Exploit Prediction Scoring System · top 7% of all CVEs

Weaknesses (CWE)

CWE-502Deserialization of Untrusted Data

Description

A Polymorphic Typing issue was discovered in FasterXML jackson-databind 2.0.0 through 2.9.10. When Default Typing is enabled (either globally or for a specific property) for an externally exposed JSON endpoint and the service has the commons-dbcp (1.4) jar in the classpath, and an attacker can find an RMI service endpoint to access, it is possible to make the service execute a malicious payload. This issue exists because of org.apache.commons.dbcp.datasources.SharedPoolDataSource and org.apache.commons.dbcp.datasources.PerUserPoolDataSource mishandling.

Timeline

Published 2019-10-01

Modified 2026-10-08

External references

NVD MITRE Exploit-DB trickest/cve VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag2 hosts

vuln:CVE-2019-16942

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Fasterxml Jackson-databind"

All exposed Fasterxml Jackson-databind instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Jackson-databind"

HTTP body or banner mentions "Jackson-databind" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2019-16942