---
id: CVE-2026-104714
title: >-
  Concurrent execution using shared resource with improper synchronization
  ('race condition') vulnerability in Apache Struts
summary: >-
  Concurrent execution using shared resource with improper synchronization
  ('race condition') vulnerability in Apache Struts. Where a localized message
  formats a date or time argument, the formatter retained for that message by
  the applica…
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-362
vendor: apache
product: struts
affected:
  - 'struts >= 2.0.0, <= 2.3.37'
  - 'struts >= 2.5.0, <= 2.5.33'
  - 'struts >= 6.0.0, < 6.12.0'
  - 'struts >= 7.0.0, < 7.4.0'
patched:
  - struts 7.4.0
published: '2026-10-05'
updated: '2026-10-08'
sourceUpdated: '2026-10-08T19:16:14.527'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-104714'
references:
  - url: 'https://cwiki.apache.org/confluence/display/WW/S2-078'
    label: security@apache.org
  - url: 'http://www.openwall.com/lists/oss-security/2026/10/05/13'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
  - cve.org
epss: 0.00527
epssPercentile: 0.44432
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-10-06T14:13:22.832050Z'
ingestedAt: '2026-10-05T19:30:59.978Z'
---

## Overview

Concurrent execution using shared resource with improper synchronization ('race condition') vulnerability in Apache Struts. Where a localized message formats a date or time argument, the formatter retained for that message by the application-wide text provider is used by concurrently served requests without isolation, so a value belonging to one user can appear in another user's response, or the rendering can fail and surface as a server error. Applications whose localized messages format no date or time arguments are not affected.

This issue affects Apache Struts: from 2.0.0 through 2.3.37, from 2.5.0 through 2.5.33, from 6.0.0 through 6.11.0, from 7.0.0 through 7.3.0.

Users are recommended to upgrade to version 6.12.0 or 7.4.0, which fixes the issue.

## Affected

- `struts >= 2.0.0, <= 2.3.37`
- `struts >= 2.5.0, <= 2.5.33`
- `struts >= 6.0.0, < 6.12.0`
- `struts >= 7.0.0, < 7.4.0`

## Remediation

Upgrade past the affected range:

- `struts 7.4.0`