CVE-2019-16943
jackson-databind polymorphic typing issue
9.8
CRITICAL
CVSS 3.1
EPSS 1.9%
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 p6spy (3.8.6) 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 com.p6spy.engine.spy.P6DataSource mishandling.
How to fix CVE-2019-16943
To remediate CVE-2019-16943, upgrade the affected package to a fixed version below.
- —upgrade to 2.10.0-2 or later
- —upgrade to 2.9.10.1 or later
Is CVE-2019-16943 being exploited?
Low — EPSS is 1.9%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 2.10.0-2
- >= 2.9.0, < 2.9.10.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |