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CVE-2026-104712

7.5 · HIGH

Asymmetric resource consumption (amplification) vulnerability in Apache Struts.

Published Oct 5, 2026apacheCWE-405EPSS 0.84%

Overview

CVE-2026-104712 is a high-severity vulnerability affecting apache struts. It was published on October 5, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories and patches from apache. Update struts to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
apachestruts2.5.14Affected

References

Refcwiki.apache.org/confluence/display/WW/S2-076Refwww.openwall.com/lists/oss-security/2026/10/05/11

How CyberStrike helps

Frequently asked questions

What is CVE-2026-104712?

CVE-2026-104712 is a high-severity vulnerability affecting apache struts. It was published on October 5, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2026-104712?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-104712?

Check the references section for vendor advisories and patches from apache. Update struts to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-104712?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-104712 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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