---
id: CVE-2026-108088
title: 'Apache Cocoon: Cross-user cache poisoning'
summary: >-
  ** UNSUPPORTED WHEN ASSIGNED ** Use of cache containing sensitive information
  vulnerability in Apache Cocoon. When using the cache on a multi-user
  application, cached values for one user could be used when serving content for
  other users…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'
cvssSource: adp
cwe:
  - CWE-524
vendor: Apache Software Foundation
product: Apache Cocoon
affected:
  - apache_cocoon <= *
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-10-29T17:30:43.005593Z'
published: '2026-10-20'
updated: '2026-10-29'
sourceUpdated: '2026-10-29T17:33:40.096Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-108088'
references:
  - url: 'https://lists.apache.org/thread/30vg3mht5vsm9vsmrdnx80zp5fw536st'
tags:
  - cve.org
epss: 0.0046
epssPercentile: 0.39836
ingestedAt: '2026-10-20T12:05:07.339Z'
---

## Overview

** UNSUPPORTED WHEN ASSIGNED ** Use of cache containing sensitive information vulnerability in Apache Cocoon. When using the cache on a multi-user application, cached values for one user could be used when serving content for other users.



This issue affects Apache Cocoon: all versions.



As this project is retired, we do not plan to release a version that fixes this issue. Users are recommended to find an alternative or restrict access to the instance to trusted users.



NOTE: This vulnerability only affects products that are no longer supported by the maintainer.

## Affected

- `apache_cocoon <= *`

## Remediation

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