CVE-2016-8738

Name: CVE-2016-8738
Creator: NVD / NIST
Published: 2017-09-20T17:29:00.337+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 3.35%

Last modified Jun 17, 2026

CVE-2016-8738 is a vulnerability of currently unknown severity. In Apache Struts 2.5 through 2.5.5, if an application allows entering a URL in a form field and the built-in URLValidator is used, it is possible to prepare a special URL which will be used to overload server process when performing validation of the URL.. EPSS estimates a 3.35% chance of exploitation in the next 30 days.

Description

In Apache Struts 2.5 through 2.5.5, if an application allows entering a URL in a form field and the built-in URLValidator is used, it is possible to prepare a special URL which will be used to overload server process when performing validation of the URL.

Metrics

EPSS Probability

3.35%

87.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Apache	Struts	2.5
Apache	Struts	2.5.1
Apache	Struts	2.5.2
Apache	Struts	2.5.3
Apache	Struts	2.5.4
Apache	Struts	2.5.5

References

http://www.securityfocus.com/bid/94657Third Party Advisory, VDB Entry
https://security.netapp.com/advisory/ntap-20180629-0003/
https://struts.apache.org/docs/s2-044.htmlMitigation, Patch, Vendor Advisory
http://www.securityfocus.com/bid/94657Third Party Advisory, VDB Entry
https://security.netapp.com/advisory/ntap-20180629-0003/
https://struts.apache.org/docs/s2-044.htmlMitigation, Patch, Vendor Advisory

Timeline

Published: Sep 20, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-8738?

How severe is CVE-2016-8738?

Severity scoring for CVE-2016-8738 is pending analysis. The EPSS model estimates a 3.35% probability of exploitation in the next 30 days.

How do I fix CVE-2016-8738?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2016-8738?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST