---
id: CVE-2023-5236
title: 'Infinispan: circular reference on marshalling leads to dos'
summary: >-
  A flaw was found in Infinispan, which does not detect circular object
  references when unmarshalling. An authenticated attacker with sufficient
  permissions could insert a maliciously constructed object into the cache and
  use it to cause o…
severity: medium
cvss: 4.4
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H'
cvssSource: cna
vendor: Red Hat
product: infinispan-server
affected:
  - infinispan-server
  - protostream (all versions)
  - protostream-processor (all versions)
  - protostream-types (all versions)
  - protostream (all versions)
  - protostream-processor (all versions)
  - protostream-types (all versions)
  - protostream (all versions)
  - protostream-processor (all versions)
  - protostream-types (all versions)
  - protostream (all versions)
  - protostream-processor (all versions)
  - protostream-types (all versions)
  - protostream (all versions)
  - protostream-processor (all versions)
  - protostream-types (all versions)
  - protostream (all versions)
  - protostream-integrationtests (all versions)
  - protostream-processor (all versions)
  - protostream-types (all versions)
  - protostream (all versions)
  - protostream-processor (all versions)
  - protostream-types (all versions)
  - protostream (all versions)
  - protostream-integrationtests (all versions)
  - protostream-processor (all versions)
  - protostream-types (all versions)
  - protostream (all versions)
  - protostream-integrationtests (all versions)
  - protostream-processor (all versions)
  - protostream-types (all versions)
  - protostream (all versions)
  - protostream-integrationtests (all versions)
  - protostream-processor (all versions)
  - protostream-types (all versions)
  - protostream (all versions)
  - protostream (all versions)
  - protostream-processor (all versions)
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2024-08-27T15:51:30.945664Z'
published: '2023-12-18'
updated: '2026-11-07'
sourceUpdated: '2026-11-07T13:41:49.221Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2023-5236'
references:
  - url: 'https://access.redhat.com/errata/RHSA-2023:5396'
    label: 'RHSA-2023:5396'
  - url: 'https://access.redhat.com/security/cve/CVE-2023-5236'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2240999'
    label: RHBZ#2240999
tags:
  - cve.org
epss: 0.01108
epssPercentile: 0.6607
ingestedAt: '2026-11-07T14:18:21.465Z'
---

## Overview

A flaw was found in Infinispan, which does not detect circular object references when unmarshalling. An authenticated attacker with sufficient permissions could insert a maliciously constructed object into the cache and use it to cause out of memory errors and achieve a denial of service.

## Affected

- `infinispan-server`
- `protostream (all versions)`
- `protostream-processor (all versions)`
- `protostream-types (all versions)`
- `protostream (all versions)`
- `protostream-processor (all versions)`
- `protostream-types (all versions)`
- `protostream (all versions)`
- `protostream-processor (all versions)`
- `protostream-types (all versions)`
- `protostream (all versions)`
- `protostream-processor (all versions)`
- `protostream-types (all versions)`
- `protostream (all versions)`
- `protostream-processor (all versions)`
- `protostream-types (all versions)`
- `protostream (all versions)`
- `protostream-integrationtests (all versions)`
- `protostream-processor (all versions)`
- `protostream-types (all versions)`
- `protostream (all versions)`
- `protostream-processor (all versions)`
- `protostream-types (all versions)`
- `protostream (all versions)`
- `protostream-integrationtests (all versions)`
- `protostream-processor (all versions)`
- `protostream-types (all versions)`
- `protostream (all versions)`
- `protostream-integrationtests (all versions)`
- `protostream-processor (all versions)`
- `protostream-types (all versions)`
- `protostream (all versions)`
- `protostream-integrationtests (all versions)`
- `protostream-processor (all versions)`
- `protostream-types (all versions)`
- `protostream (all versions)`
- `protostream (all versions)`
- `protostream-processor (all versions)`

## Remediation

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