CVE-2016-8738
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.
Does this matter?
Lower severity and a low EPSS score (3.26%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.0
- 5.9 MEDIUMCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 3.26% probability · 88th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- apache/struts
- Source
- security@apache.org
EPSS 3.3% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.