---
id: CVE-2026-111868
title: datastax pulsar-jms PulsarObjectMessage.java decode deserialization
summary: >-
  A vulnerability was determined in datastax pulsar-jms up to 9.0.3. This issue
  affects the function decode of the file
  pulsar-jms/src/main/java/com/datastax/oss/pulsar/jms/messages/PulsarObjectMessage.java.
  This manipulation causes deseri…
severity: medium
cvss: 6.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C'
cvssSource: cna
cwe:
  - CWE-502
  - CWE-20
vendor: datastax
product: pulsar-jms
affected:
  - pulsar-jms 9.0.0
  - pulsar-jms 9.0.1
  - pulsar-jms 9.0.2
  - pulsar-jms 9.0.3
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-19T21:31:52.260920Z'
exploitAvailable: true
published: '2026-10-18'
updated: '2026-10-19'
sourceUpdated: '2026-10-19T21:32:00.800Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-111868'
references:
  - url: 'https://vuldb.com/vuln/421580'
    label: >-
      VDB-421580 | datastax pulsar-jms PulsarObjectMessage.java decode
      deserialization
  - url: 'https://vuldb.com/vuln/421580/cti'
    label: 'VDB-421580 | CTI Indicators (IOB, IOC, IOA)'
  - url: 'https://vuldb.com/cve/CVE-2026-111868'
    label: CVE-2026-111868 | CVE Analysis and Report
  - url: 'https://vuldb.com/submit/1004922'
    label: >-
      Submit #1004922 | datastax pulsar-jms <=9.0.3 Deserialization of Untrusted
      Data
  - url: 'https://github.com/datastax/pulsar-jms/issues/210'
  - url: 'https://github.com/datastax/pulsar-jms/'
tags:
  - cve.org
  - exploit-available
epss: 0.00247
epssPercentile: 0.14941
ingestedAt: '2026-10-18T01:27:58.672Z'
---

## Overview

A vulnerability was determined in datastax pulsar-jms up to 9.0.3. This issue affects the function decode of the file pulsar-jms/src/main/java/com/datastax/oss/pulsar/jms/messages/PulsarObjectMessage.java. This manipulation causes deserialization. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report but has not responded yet.

## Affected

- `pulsar-jms 9.0.0`
- `pulsar-jms 9.0.1`
- `pulsar-jms 9.0.2`
- `pulsar-jms 9.0.3`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.