Asymmetric Resource Consumption Vulnerability in Apache Struts
CVE-2026-104712

7.5HIGH

Key Information:

Vendor

Apache
Status
Apache Struts
Vendor
CVE Published:
5 October 2026

What is CVE-2026-104712?

An asymmetric resource consumption vulnerability exists in Apache Struts due to improper handling of request parameters bound to arbitrary-precision decimal properties. This issue allows an unauthenticated remote attacker to generate responses that can drastically exceed the initial request size, potentially consuming excessive server CPU and network bandwidth. Applications that do not leverage BigDecimal properties through the Struts tag library remain unexposed. Users are advised to upgrade to Apache Struts version 6.12.0 or 7.4.0 to mitigate the risk.

Affected Version(s)

Apache Struts 2.5.14 <= 2.5.33

Apache Struts 6.0.0 <= 6.11.0

Apache Struts 7.0.0 <= 7.3.0

References

https://cwiki.apache.org/confluence/display/WW/S2-076
vendor-advisory

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

0xCc.zhang
.