Unknown [CVE-2026-73634] Uncontrolled resource consumption vulnerability in Apache Struts
This security Apache Software Foundation advisory covers CVE-2026-73634 affecting Apache Struts.
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Summary
Uncontrolled resource consumption vulnerability in Apache Struts. An application that exposes an endpoint collecting Content Security Policy violation reports reads the submitted report into memory without bounding how much it will accept, so a single request can exhaust the heap and deny service to other users.
Such endpoints are ordinarily reachable without authentication. The core distribution maps no such endpoint by default; applications that do not collect violation reports are not affected.
This issue affects Apache Struts: 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.
- 6.0.0 through 6.10.0
- 7.0.0 through 7.2.1.
- through 7.2.1
Official advisory · medium-confidence parse· fetched 1 hour ago·verify at source
- 6.11.0
- 7.3.0
Official advisory · medium-confidence parse· fetched 1 hour ago·verify at source
Mitigation checklist
- Users are recommended to upgrade to version 6.11.0 or 7.3.0, which fixes the issue.
Official advisory · medium-confidence parse· fetched 1 hour ago·verify at source
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