CVE-2026-104712 (GCVE-0-2026-104712)

Vulnerability from cvelistv5 – Published: 2026-10-05 18:35 – Updated: 2026-10-06 14:10
VLAI
Title
Apache Struts: Disproportionate response size when rendering BigDecimal request parameters
Summary
Asymmetric resource consumption (amplification) vulnerability in Apache Struts. When a request parameter is bound to an arbitrary-precision decimal (java.math.BigDecimal) property that is then rendered through the Struts tag library, the framework can produce a response many orders of magnitude larger than the request, allowing an unauthenticated remote attacker to exhaust server CPU and outbound network capacity with sustained low-volume traffic. Applications that do not bind request parameters to BigDecimal properties, or never render such a property through the Struts tag library, are not affected. This issue affects Apache Struts: from 2.5.14 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.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-06 14:09 UTC
CWE
  • CWE-405 - Asymmetric Resource Consumption (Amplification)
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache Struts Affected: 2.5.14 , ≤ 2.5.33 (semver)
Affected: 6.0.0 , ≤ 6.11.0 (semver)
Affected: 7.0.0 , ≤ 7.3.0 (semver)
Create a notification for this product.
Credits
0xCc.zhang
Show details on NVD website
To clipboard 

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