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High, CVSS 7.1

Infinispan circular object references causes out of memory errors

CVE-2023-5236GHSA-488m-w9fp-5mm2

What to do

Vendor fix available. Upgrade each affected package to the fixed version on its release line (org.infinispan.protostream:protostream 4.6.2.Final), redeploy, then verify what is actually installed.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

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Affected packages

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS 4.0
7.1 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N · score source
EPSS
  • CVE-2023-5236: 1.11% estimated exploitation activity in the next 30 days; percentile 65.91 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.
Source description

As published by the source; long descriptions are shortened.

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.

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 1 · created ·

    Published from ghsa record GHSA-488m-w9fp-5mm2

Agent brief

Preview the exact text before you copy it. Commands are read-only suggestions; review them before running anything.

# Patch Next advisory brief: CVE-2023-5236

Advisory: Infinispan circular object references causes out of memory errors
IDs: CVE-2023-5236, GHSA-488m-w9fp-5mm2
Record: https://patchnext.com/advisories/cve-2023-5236 (revision 1, source checked 26 Oct 2026, 16:31 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: High (CVSS 7.1)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: org.infinispan.protostream:protostream 4.6.2.Final. A vendor fix does not mean a deployment is fixed.

## Affected components
- Maven org.infinispan.protostream:protostream: affected < 4.6.2.Final; fixed in 4.6.2.Final

## Suggested inspection (read-only)
- Maven org.infinispan.protostream:protostream: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on org.infinispan.protostream:protostream.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-488m-w9fp-5mm2 (GitHub-reviewed advisory GHSA-488m-w9fp-5mm2 lists affected ranges: Maven org.infinispan.protostream:protostream >=0 <4.6.2.Final)

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