November 14, 2026

CVE Watchtower

CVE-2026-104713Apache Struts Allocation of Resources Without Limits or Throttling

NVDCVSS scored by 134c704f-9b21-4f2e-91b3-4a467353bcc0

Vulnerability Summary

Allocation of resources without limits or throttling vulnerability in the Apache Struts REST plugin. A request body is read into memory without any bound on how much will be accepted, so a single request can cause the server to allocate memory in proportion to its size, exhausting the Java heap and denying service to other users. No additional setting has to be enabled. Applications that do not use the REST plugin are not affected.

This issue affects Apache Struts: from 2.1.8 through 2.3.37, from 2.5.0 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.
Severity Level
MEDIUM(6.5)
Published Date
Oct 5, 2026
Last Modified
Oct 8, 2026
Exploitation Status
No confirmed exploitation yet
EPSS Score (30-Day)
0.56%Probability
Root Weakness (CWE)
CWE-770: Allocation of Resources Without Limits or Throttling β†—
The product allocates a reusable resource on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated.
CVSS v3.1 Base Metrics — Score 6.5 (MEDIUM)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged
ConfidentialityNone
IntegrityNone
AvailabilityHigh

Affected & Patched Versions

Affected Versions
  • Apache Struts >= 2.1.8 and <= 2.3.37
  • Apache Struts >= 2.5.0 and <= 2.5.33
  • Apache Struts >= 6.0.0 and < 6.12.0
  • Apache Struts >= 7.0.0 and < 7.4.0
Patched Versions
  • Apache Struts 6.12.0
  • Apache Struts 7.4.0

What to do

Fix it during your normal patch cycle. No exploitation is confirmed yet.

  1. Check whether you run Apache Struts and which version.
  2. Update to a patched version listed above, then confirm the new version.

Timeline

  • Oct 5, 2026Published
  • Oct 8, 2026Record last modified

Score, severity and exploitation changes are tracked from the day Watchtower started logging them.

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Related Coverage

More Apache Struts CVEs

External References

Data last checked: Nov 14, 2026 07:11 UTC