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Public proof of conceptFix available

CVE-2019-12384

A public proof of concept exists; no exploitation attested.

  • Published2019-06-24
  • WeaknessCWE-502

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

FasterXML jackson-databind 2.x before 2.9.9.1 might allow attackers to have a variety of impacts by leveraging failure to block the logback-core class from polymorphic deserialization. Depending on the classpath content, remote code execution may be possible.

Timeline

dates in UTC
  1. 2019-06-2416:15CVE publishedNVD
  2. 2026-10-2319:23First public proof of conceptPoC-in-GitHub
  3. 2026-10-2319:23EPSS crossed 10 %FIRST EPSS

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2019-12384?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2019-12384?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · OSV
Redhat enterprise linux
BranchAffectedFixed in
7.0= 7.0no fix published
7.4= 7.4no fix published
7.5= 7.5no fix published
7.6= 7.6no fix published
7.7= 7.7no fix published
Fasterxml jackson-databind
BranchAffectedFixed in
2.9≥ 2.9.0, < 2.9.9.12.9.9.1
2.8≥ 2.8.0, < 2.8.11.42.8.11.4
2.7≥ 2.7.0, < 2.7.9.62.7.9.6
2.x≥ 2.0.0, < 2.6.7.32.6.7.3
Debian debian linux
BranchAffectedFixed in
8.0= 8.0no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • apache-commons-collectionsAlmaLinux:8all versions · fixed in 3.2.2-10.module_el8.5.0+150+5f0dbea0
  • apache-commons-collectionsAlmaLinux:8all versions · fixed in 3.2.2-10.module_el8.5.0+2577+9e95fe00
  • apache-commons-langAlmaLinux:8all versions · fixed in 2.6-21.module_el8.5.0+150+5f0dbea0
  • apache-commons-langAlmaLinux:8all versions · fixed in 2.6-21.module_el8.5.0+2577+9e95fe00
  • bea-stax-apiAlmaLinux:8all versions · fixed in 1.2.0-16.module_el8.5.0+150+5f0dbea0
  • bea-stax-apiAlmaLinux:8all versions · fixed in 1.2.0-16.module_el8.5.0+2577+9e95fe00
  • glassfish-fastinfosetAlmaLinux:8all versions · fixed in 1.2.13-9.module_el8.5.0+150+5f0dbea0
  • glassfish-fastinfosetAlmaLinux:8all versions · fixed in 1.2.13-9.module_el8.5.0+2577+9e95fe00

35 more package ranges on OSV.dev

Full record on NVD

Fix

Advisories and patches

Detection

read 2026-10-23 19:23 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
2 repositories, unverifiedjas502n/CVE-2019-12384MagicZer0/Jackson_RCE-CVE-2019-12384
PoC-in-GitHub

Sources

  • CISA-ADPSSVC decisionnone2026-10-08
  • OpenCVESSVC decisionnone—
  • NVDCVSS 3.15.9read 2026-10-23
  • NVDCVSS 2.04.3read 2026-10-23
  • NVDweakness (CWE)CWE-502read 2026-10-23
  • FIRST EPSSEPSS score45.2 %read 2026-10-23
  • PoC-in-GitHubproof of concept2read 2026-10-23
  • OSVaffected packages—

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Published
2019-06-24
Last Modified
2026-10-08
NVD status
Modified

Frequently asked questions

What is CVE-2019-12384?

FasterXML jackson-databind 2.x before 2.9.9.1 might allow attackers to have a variety of impacts by leveraging failure to block the logback-core class from polymorphic deserialization. Depending on the classpath content, remote code execution may be possible.

Is CVE-2019-12384 actively exploited?

Active exploitation of CVE-2019-12384 has not been confirmed. Its EPSS score was 45.2% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-12384?

CVE-2019-12384 has a CVSS v3 base score of 5.9 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.

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