What’s Vulnerable › Vulnerabilities

CVE-2016-8738

• Severity: medium (CVSS 5.9 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-09-20 · updated 2026-06-17
• Weakness: CWE-20

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.

Affected products

• Apache Struts: 2.5, 2.5.1, 2.5.2, 2.5.3, 2.5.4, 2.5.5

References

• http://www.securityfocus.com/bid/94657
• https://security.netapp.com/advisory/ntap-20180629-0003/
• https://struts.apache.org/docs/s2-044.html
• http://www.securityfocus.com/bid/94657
• https://security.netapp.com/advisory/ntap-20180629-0003/
• https://struts.apache.org/docs/s2-044.html

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