Vulnerability details
CVE-2026-73634
Apache Struts: Unbounded read of a Content Security Policy violation report
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.5High | 3.1 | CISA ADP / Vulnrichment (CISA-ADP) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Apache Software Foundation | Apache Struts | 6.0.0 ≤ v ≤ 6.10.0 | CVEProject cvelistV5 (CNA) |
| Apache Software Foundation | Apache Struts | 7.0.0 ≤ v ≤ 7.2.1 | CVEProject cvelistV5 (CNA) |
References and advisories
1- https://cwiki.apache.org/confluence/display/WW/S2-073 vendor-advisory
Details
- Published
- 2026-08-15
- Last updated
- 2026-08-17
- State
- Published
- Assigner (CNA)
- apache
Exploit prediction (EPSS)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- None
- Technical impact
- Partial
Weaknesses (CWE)
- CWE-400Uncontrolled Resource Consumption