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Vulnerabilities

Vulnerability · CVE-2026-73635

Allocation of resources without limits or throttling vulnerability in Apache Struts.

Published Aug 15, 2026 · catalog updated Aug 18, 2026 · Allocation of resources without

Last checked Nov 8, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-73635. EPSS is 0.45%. Act only if a listed version of Allocation of resources without is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Allocation of resources without).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
High7.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.45%
Remediation
Version ranges on file
Affected products
cpe apache/struts

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe apache/struts< 6.11.0
  • cpe apache/struts< 7.3.0
  • cpe apache/struts>= 2.0.0, <= 2.3.37
  • cpe apache/struts>= 2.5.0, <= 2.5.33

How to fix CVE-2026-73635

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-73635. EPSS is 0.45%. Act only if a listed version of Allocation of resources without is installed.

Which versions are affected?

Compare what you have installed with < 6.11.0, < 7.3.0, >= 2.0.0, <= 2.3.37, >= 2.5.0, <= 2.5.33. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-770: Allocation of Resources Without Limits or Throttling. EPSS 0.45%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Apache Struts security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Aug 15, 2026 · Monitored products — high

    Detected

    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 con

  2. Aug 18, 2026 · Monitored products — high

    Updated

    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 con

Sources

  • FIRST EPSSExploitation probabilityCVE-2026-73635

    30-day exploitation probability 0.45%

    first.org
  • Monitored products — highVendor advisoryCVE-2026-73635

    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 con

    nvd.nist.gov

References

Freshness

Last verified in this catalog Nov 8, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSNov 8, 2026
  • Monitored products — highNov 8, 2026