# Struts vulnerabilities > Struts is made by Apache. We track 87 published vulnerabilities listed under that exact name, across 174 versions. 9 of them are on the list of flaws known to be exploited, the newest added on 8 October 2026. Apache lists newer releases under their own names, such as Struts Extras, so check those pages too. Canonical page: https://www.precursorintelligence.com/product/apache/struts ## At a glance - **Made by:** [Apache](https://www.precursorintelligence.com/vendors/apache) - **Published vulnerabilities:** 87 - **Known to be exploited:** 9 (listed under the name Struts) - **Versions tracked:** 174 - **Most recently added to the known-exploited list:** [CVE-2016-3081](https://www.precursorintelligence.com/what-is/cve-2016-3081), 8 October 2026. We keep watching the list. ## Is Struts listed under other names? Apache also lists Struts under more specific names, such as Struts Extras. Flaws listed only under those names are counted on their own pages, not here. - [Struts Extras](https://www.precursorintelligence.com/product/apache/struts_extras): 1 published vulnerability ## Which versions of Struts do the exploited flaws hit? Each exploited flaw lists the versions it affects, as published. "before 1.2.9" means every version up to, but not including, 1.2.9. - [CVE-2016-3081](https://www.precursorintelligence.com/what-is/cve-2016-3081) (Apache Struts Command Injection Vulnerability): 2.0.0, 2.0.1, 2.0.2, 2.0.3, 2.0.4, 2.0.5, 2.0.6, 2.0.7, 2.0.8, 2.0.9, 2.0.10, 2.0.11, 2.0.11.1, 2.0.11.2, 2.0.12, 2.0.13, 2.0.14, 2.1.0, 2.1.1, 2.1.2, 2.1.3, 2.1.4, 2.1.5, 2.1.6, 2.1.8, 2.1.8.1, 2.2.1, 2.2.1.1, 2.2.3, 2.2.3.1, 2.3.1, 2.3.1.1, 2.3.1.2, 2.3.3, 2.3.4, 2.3.4.1, 2.3.7, 2.3.8, 2.3.12, 2.3.14, 2.3.14.1, 2.3.14.2, 2.3.14.3, 2.3.15, 2.3.15.1, 2.3.15.2, 2.3.15.3, 2.3.16, 2.3.16.1, 2.3.16.2, 2.3.16.3, 2.3.20, 2.3.20.1, 2.3.24, 2.3.24.1, 2.3.28 - [CVE-2013-2251](https://www.precursorintelligence.com/what-is/cve-2013-2251) (Apache Struts Improper Input Validation Vulnerability): 2.0.0 to 2.3.15 - [CVE-2017-9791](https://www.precursorintelligence.com/what-is/cve-2017-9791) (Apache Struts 1 Improper Input Validation Vulnerability): 2.3.1, 2.3.1.1, 2.3.1.2, 2.3.3, 2.3.4, 2.3.4.1, 2.3.7, 2.3.8, 2.3.12, 2.3.14, 2.3.14.1, 2.3.14.2, 2.3.14.3, 2.3.15, 2.3.15.1, 2.3.15.2, 2.3.15.3, 2.3.16, 2.3.16.1, 2.3.16.2, 2.3.16.3, 2.3.20, 2.3.20.1, 2.3.20.3, 2.3.24, 2.3.24.1, 2.3.24.3, 2.3.28, 2.3.28.1, 2.3.29, 2.3.30, 2.3.31, 2.3.32 - [CVE-2006-1547](https://www.precursorintelligence.com/what-is/cve-2006-1547) (Apache Struts 1 ActionForm Denial-of-Service Vulnerability): before 1.2.9 - [CVE-2012-0391](https://www.precursorintelligence.com/what-is/cve-2012-0391) (Apache Struts 2 Improper Input Validation Vulnerability): before 2.2.3.1 - [CVE-2020-17530](https://www.precursorintelligence.com/what-is/cve-2020-17530) (Apache Struts Remote Code Execution Vulnerability): 2.0.0 to before 2.5.30 - [CVE-2017-5638](https://www.precursorintelligence.com/what-is/cve-2017-5638) (Apache Struts Remote Code Execution Vulnerability): 2.2.3 to before 2.3.32, 2.5.0 to before 2.5.10.1 - [CVE-2017-9805](https://www.precursorintelligence.com/what-is/cve-2017-9805) (Apache Struts Deserialization of Untrusted Data Vulnerability): 2.1.2 to before 2.3.34, 2.5.0 to before 2.5.13 - [CVE-2018-11776](https://www.precursorintelligence.com/what-is/cve-2018-11776) (Apache Struts Remote Code Execution Vulnerability): 2.0.4 to before 2.3.35, 2.5.0 to before 2.5.17 ## Which Struts vulnerabilities are being exploited? 9 flaws are on the government list of vulnerabilities known to be exploited, newest first: - [CVE-2016-3081](https://www.precursorintelligence.com/what-is/cve-2016-3081): Apache Struts Command Injection Vulnerability. High, CVSS 8.1, chance of use in 30 days 96%, known exploited since 8 October 2026. - [CVE-2013-2251](https://www.precursorintelligence.com/what-is/cve-2013-2251): Apache Struts Improper Input Validation Vulnerability. Critical, CVSS 9.8, chance of use in 30 days >99%, known exploited since 25 March 2022. - [CVE-2017-9791](https://www.precursorintelligence.com/what-is/cve-2017-9791): Apache Struts 1 Improper Input Validation Vulnerability. Critical, CVSS 9.8, chance of use in 30 days 99%, known exploited since 10 February 2022. - [CVE-2006-1547](https://www.precursorintelligence.com/what-is/cve-2006-1547): Apache Struts 1 ActionForm Denial-of-Service Vulnerability. High, CVSS 7.5, chance of use in 30 days 55%, known exploited since 21 January 2022. - [CVE-2012-0391](https://www.precursorintelligence.com/what-is/cve-2012-0391): Apache Struts 2 Improper Input Validation Vulnerability. Critical, CVSS 9.8, chance of use in 30 days 76%, known exploited since 21 January 2022. - [CVE-2020-17530](https://www.precursorintelligence.com/what-is/cve-2020-17530): Apache Struts Remote Code Execution Vulnerability. Critical, CVSS 9.8, chance of use in 30 days 96%, known exploited since 3 November 2021. - [CVE-2017-5638](https://www.precursorintelligence.com/what-is/cve-2017-5638): Apache Struts Remote Code Execution Vulnerability. Critical, CVSS 9.8, chance of use in 30 days >99%, known exploited since 3 November 2021. - [CVE-2017-9805](https://www.precursorintelligence.com/what-is/cve-2017-9805): Apache Struts Deserialization of Untrusted Data Vulnerability. High, CVSS 8.1, chance of use in 30 days >99%, known exploited since 3 November 2021. - [CVE-2018-11776](https://www.precursorintelligence.com/what-is/cve-2018-11776): Apache Struts Remote Code Execution Vulnerability. High, CVSS 8.1, chance of use in 30 days >99%, known exploited since 3 November 2021. ## Which Struts flaws are most likely to be used? Ranked by the latest exploit-likelihood forecast (the chance each flaw is used in an attack in the next 30 days): - [CVE-2017-5638](https://www.precursorintelligence.com/what-is/cve-2017-5638): >99%, Critical (CVSS 9.8), known exploited - [CVE-2013-2251](https://www.precursorintelligence.com/what-is/cve-2013-2251): >99%, Critical (CVSS 9.8), known exploited - [CVE-2018-11776](https://www.precursorintelligence.com/what-is/cve-2018-11776): >99%, High (CVSS 8.1), known exploited - [CVE-2014-0094](https://www.precursorintelligence.com/what-is/cve-2014-0094): >99%, Medium (CVSS 5.0) - [CVE-2017-9805](https://www.precursorintelligence.com/what-is/cve-2017-9805): >99%, High (CVSS 8.1), known exploited - [CVE-2014-0114](https://www.precursorintelligence.com/what-is/cve-2014-0114): >99%, High (CVSS 7.5) - [CVE-2017-9791](https://www.precursorintelligence.com/what-is/cve-2017-9791): 99%, Critical (CVSS 9.8), known exploited - [CVE-2014-0112](https://www.precursorintelligence.com/what-is/cve-2014-0112): 98%, High (CVSS 7.5) - [CVE-2012-0392](https://www.precursorintelligence.com/what-is/cve-2012-0392): 98%, Medium (CVSS 6.8) - [CVE-2019-0230](https://www.precursorintelligence.com/what-is/cve-2019-0230): 97%, Critical (CVSS 9.8) ## Questions ### How many vulnerabilities does Struts have? We track 87 published vulnerabilities listed under the name Struts, across 174 versions. The most recent Struts flaw added to the known-exploited list is CVE-2016-3081, on 8 October 2026. ### Which Struts vulnerabilities are being exploited? 9 are on the list of flaws known to be exploited. The most recently added are CVE-2016-3081, CVE-2013-2251 and CVE-2017-9791. ### Why are newer Struts flaws missing from this page? Apache also lists Struts under more specific names, such as Struts Extras. Flaws listed only under those names are counted on their own pages, not here. Open the release you run to see its own list. ### Which versions of Struts do the exploited flaws affect? Each flaw names its own versions, usually as ranges. The newest, CVE-2016-3081, affects 2.0.0, 2.0.1, 2.0.2, 2.0.3 and more. The versions for every exploited flaw are listed on this page. ### How do I get alerts for Struts? Create a Precursor Intelligence account and track Struts. We match it against every published flaw, give each one a risk score from 0 to 100 and keep watching, so you hear about new ones as soon as we know, by email, in the app or by webhook. ## Running Struts? Precursor Intelligence keeps checking for you: - **Tell us what you run.** Pick your software from a list, or let us work it out from your website. - **We match it to every flaw.** Over 400,000 published flaws, checked against your list. - **Ranked by real-world risk.** Every flaw gets a 0 to 100 risk score, kept up to date, led by evidence criminals are using it. - **Told as soon as we know.** An alert by email, in the app or by webhook to your own tools. Start free (no card, nothing to install): https://www.precursorintelligence.com/register Book a demo: https://www.precursorintelligence.com/contact