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Vulnerability record · CVE-2017-9793 · published 20 September 2017

CVE-2017-9793: Apache struts improper input validation vulnerability

Apache · Struts

The REST Plugin in Apache Struts 2.1.x, 2.3.7 through 2.3.33 and 2.5 through 2.5.12 is using an outdated XStream library which is vulnerable and allow perform a DoS attack using malicious request with specially crafted XML payload.

7.5 CVSS 3.0 High EPSS 8.8% · top 5.0% CWE-20 · Improper input validation
7.5CVSS 3.0 base score, v2 5.0
8.8%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
14References
17 Jun 2026Last modified by NVD

Description

The REST Plugin in Apache Struts 2.1.x, 2.3.7 through 2.3.33 and 2.5 through 2.5.12 is using an outdated XStream library which is vulnerable and allow perform a DoS attack using malicious request with specially crafted XML payload.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.brocade.com/content/dam/common/documents/content-types/security-bulletin/brocade-security-advisory-2017-429.h Third Party Advisory
http://www.oracle.com/technetwork/security-advisory/alert-cve-2017-9805-3889403.html PatchThird Party Advisory
http://www.securityfocus.com/bid/100611 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1039262 Third Party AdvisoryVDB Entry
https://security.netapp.com/advisory/ntap-20180629-0001/
https://struts.apache.org/docs/s2-051.html PatchVendor Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170907-struts2 Third Party Advisory
http://www.brocade.com/content/dam/common/documents/content-types/security-bulletin/brocade-security-advisory-2017-429.h Third Party Advisory
http://www.oracle.com/technetwork/security-advisory/alert-cve-2017-9805-3889403.html PatchThird Party Advisory
http://www.securityfocus.com/bid/100611 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1039262 Third Party AdvisoryVDB Entry
https://security.netapp.com/advisory/ntap-20180629-0001/
https://struts.apache.org/docs/s2-051.html PatchVendor Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170907-struts2 Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2017-9793), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.