CVE-2026-73634
Last modified
CVE-2026-73634 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 0.54% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Apache | Struts | >= 6.0.0, < 6.11.0 |
| Apache | Struts | >= 7.0.0, < 7.3.0 |
References
- https://cwiki.apache.org/confluence/display/WW/S2-073Vendor Advisory, Mitigation
Timeline
- Published
- Last Modified
- Status
- Analyzed
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