Apache Struts: Unbounded read of a Content Security Policy violation report
Published Aug 15, 2026
7.5
HIGHCVSS 3.1
EPSS 0.73%
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.
Affected products
-
- Version 6.0.0StatusaffectedConstraints<=6.10.0
- Version 7.0.0StatusaffectedConstraints<=7.2.1
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Apache Software Foundation | Apache Struts | unaffected |
|
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
YesTechnical Impact
PartialDecision
n/aAssessed Aug 17, 2026 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
Aug–Oct 2026- EPSS v5
Percentile over time
- EPSS v5
Table of values (2 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.73% (0.00730) | 52.55th | v5 (v2026.06.15) |
| Aug 16, 2026 | 0.23% (0.00228) | 13.87th | v5 (v2026.06.15) |
References (1)
- https://cwiki.apache.org/confluence/display/WW/S2-073 vendor-advisoryVendor AdvisoryMitigation
| Link | Providers | Tags |
|---|---|---|
| https://cwiki.apache.org/confluence/display/WW/S2-073 | vendor-advisoryVendor AdvisoryMitigation |
Change history (0)
No recorded changes yet.