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High severity7.5NVD Advisory· Published Aug 15, 2026· Updated Aug 18, 2026

CVE-2026-73635

CVE-2026-73635

Description

Allocation of resources without limits or throttling vulnerability in Apache Struts. When no fixed locale is configured, the locale used for localized-text lookups is taken from the incoming request, allowing an unauthenticated remote client to cause the framework's internal localized-text caches to grow without bound and exhaust the Java heap, denying service to other users. Applications that configure a fixed locale 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 6.10.0, from 7.0.0 through 7.2.1.

Users are recommended to upgrade to version 6.11.0 or 7.3.0, which fixes the issue.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

2
  • Apache/Struts2 versions
    cpe:2.3:a:apache:struts:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:a:apache:struts:*:*:*:*:*:*:*:*range: >=2.0.0,<=2.3.37
    • (no CPE)range: 2.0.0-2.3.37, 2.5.0-2.5.33, 6.0.0-6.10.0, 7.0.0-7.2.1

Patches

Vulnerability mechanics

References

1

News mentions

1