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  4. CVE 2026 104712 apache struts disproportionate response size when
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Copyright ยฉ 2026 HOL DAO LLC. All rights reserved.

Back to active CVEs
Unknown severity ยท Source severity not reportedCVE-2026-104712

Apache Struts: Disproportionate response size when rendering BigDecimal request parametersCVE-2026-104712

Answer in brief

CVE-2026-104712 records a Unknown severity vulnerability in Apache Struts: Disproportionate response size when rendering BigDecimal request parameters. The current sources do not mark it as known exploited. The current feed maps Apache Software Foundation/org.apache.struts:struts2-core (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 5, 2026Updated Oct 5, 2026Source checked Oct 5, 2026First seen by HOL Oct 5, 2026Material review Oct 5, 2026
Upstream Advisory

Key facts

Risk
Unknown severitySource severity not reported
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Not reported

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Apache Software Foundation/org.apache.struts:struts2-core (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Apache Software Foundation/org.apache.struts:struts2-coregeneric>=2.5.14 <=2.5.33 || >=6.0.0 <=6.11.0 || >=7.0.0 <=7.3.0Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Apache Software Foundation/org.apache.struts:struts2-core.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Oct 5, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 5, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 5, 2026

Sources and claim methodology

  • Source referencecwiki.apache.org
  • Source referenceopenwall.com
Upstream source description

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.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Apache Struts: OGNL injection in the legacy RESTful action mapperSame apache software foundation/org.apache.struts package
  • Apache Struts: Shared message formatter exposes date and time values across concurrent requestsSame apache software foundation/org.apache.struts package
  • WordPress WP Spell Check plugin <= 12.1 - PHP Object Injection vulnerabilitySame generic ecosystem
  • WordPress VK Google Job Posting Manager plugin <= 1.3.1 - PHP Object Injection vulnerabilitySame generic ecosystem
  • WordPress WP BASE Booking plugin <= 6.4.0 - SQL Injection vulnerabilitySame generic ecosystem
  • WordPress WC Ukraine Shipping plugin <= 1.23.2 - Broken Access Control vulnerabilitySame generic ecosystem

Record context

Vulnerability class
Missing Auth
EPSS
Not reported
CWE IDs
CWE-405
Source
CVE List V5
Source checked
Oct 5, 2026
References
2 linked sources
Open source record