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High

Apache Struts vulnerable to remote command execution (RCE) due to improper input validation

  • Disclosed: 18.10.2018
  • Updated: 11.10.2026 12:22

CISA confirms exploitation of this vulnerability in real attacks. Prioritise checking whether your application is affected. CISA KEV · CC0 1.0

Apache Struts contains a Remote Code Execution when using results with no namespace and it's upper actions have no or wildcard namespace. The same flaw exists when using a url tag with no value, action set, and it's upper actions have no or wildcard namespace.

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
Java / Kotlin (Maven) org.apache.struts:struts2-core >= 2.0.4, < 2.3.35, >= 2.5, < 2.5.17 2.3.35, 2.5.17

References

CVSS score 8.1/10
CVSS vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H
Weakness (CWE)
CWE-20
Platform
Java / Kotlin (Maven)
Package
org.apache.struts:struts2-core
Disclosed
18.10.2018
Updated
11.10.2026 12:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-cr6j-3jp9-rw65 - CC BY 4.0

Vulnerability history: org.apache.struts:struts2-core

All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (60) in the archive
Total entries
60
First → latest
10.2018 01.2026
Without a fix
0
Exploited in attacks
6

Severity breakdown

  • Critical 14
  • High 25
  • Medium 20
  • Low 1

Disclosures per year

Severity:
  1. Apache Struts 2 is Missing XML Validation
    High · 8.1 CVE-2025-68493 >= 2.0.0, <= 2.3.37, >= 2.5.0, <= 2.5.33, >= 6.0.0, < 6.1.1 6.1.1
  2. Apache Struts has a Denial of Service vulnerability
    High · 8.2 CVE-2025-66675 >= 2.0.0, < 6.8.0, >= 7.0.0, < 7.1.1 6.8.0, 7.1.1
  3. Apache Struts is Vulnerable to DoS via File Leak
    High · 7.5 CVE-2025-64775 >= 6.0.0, < 6.8.0, >= 7.0.0, < 7.1.1, >= 2.0.0, <= 2.3.37, >= 2.5.0, <= 2.5.33 6.8.0, 7.1.1
  4. Apache Struts file upload logic is flawed
    Critical · 9.8 CVE-2024-53677 < 6.4.0 6.4.0
  5. Apache Struts vulnerable to path traversal
    Critical · 9.8 CVE-2023-50164 >= 2.0.0, < 2.5.33, >= 6.0.0, < 6.3.0.2 2.5.33, 6.3.0.2
  6. Apache Struts Improper Control of Dynamically-Managed Code Resources vulnerability
    High · 7.5 CVE-2023-41835 >= 6.2.0, < 6.3.0.1, >= 6.0.0, < 6.1.2.2, < 2.5.32 6.3.0.1, 6.1.2.2, 2.5.32
  7. Apache Struts vulnerable to memory exhaustion
    High · 7.5 CVE-2023-34396 < 2.5.31, >= 6.0.0, < 6.1.2.1 2.5.31, 6.1.2.1
  8. Improper Preservation of Permissions in Apache Struts
    High · 7.5 CVE-2019-0233 >= 2.0.0, < 2.5.22 2.5.22
  9. Remote Code Execution in Apache Struts
    Critical · 9.8 CVE-2016-3082 < 2.3.20.3, >= 2.3.24, < 2.3.24.3, >= 2.3.28, < 2.3.28.1 2.3.20.3, 2.3.24.3, 2.3.28.1
  10. Code injection in Apache Struts
    High CVE-2013-4316 >= 2.0.0, < 2.3.15.2 2.3.15.2
  11. Apache Struts improper action name cleanup
    Critical · 9.8 CVE-2016-4436 >= 2.0.0, < 2.3.29, >= 2.5-BETA1, < 2.5.1 2.3.29, 2.5.1
  12. Incomplete exclude pattern in Apache Struts
    High CVE-2015-1831 >= 2.0.0, < 2.3.20.1 2.3.20.1
  13. Special top object can be used to access Struts' internals
    High · 7.5 CVE-2015-5209 < 2.3.24.1 2.3.24.1
  14. Arbitrary code execution in Apache Struts 2
    High CVE-2013-2134 >= 2.0.0, < 2.3.14.3 2.3.14.3
  15. Arbitrary code execution in Apache Struts 2
    High CVE-2013-2135 >= 2.0.0, < 2.3.14.3 2.3.14.3
  16. Apache Struts Code injection due to conversion error
    High CVE-2012-0838 < 2.2.3.1 2.2.3.1
  17. Apache Struts forced double OGNL evaluation
    High · 8.8 CVE-2016-4461 >= 2.0.0, < 2.3.29 2.3.29
  18. ClassLoader manipulation in Apache Struts
    High CVE-2014-0112 < 2.3.20 2.3.20
  19. Arbitrary code execution in Apache Struts
    High CVE-2013-1966 >= 2.0.0, < 2.3.14.2 2.3.14.2
  20. ClassLoader manipulation in Apache Struts
    High CVE-2014-0113 < 2.3.20 2.3.20
  21. Improper Control of Generation of Code in Apache Struts
    High CVE-2013-1965 < 2.3.14.3 2.3.14.3
  22. ClassLoader manipulation in Apache Struts
    High CVE-2014-0116 < 2.3.20 2.3.20
  23. Apache Struts vulnerable to arbitrary remote code execution due to improper input validation
    Critical · 9.8 CVE-2016-3087 >= 2.3.19, < 2.3.20.3, >= 2.3.21, < 2.3.24.3, >= 2.3.25, < 2.3.28.1 2.3.20.3, 2.3.24.3, 2.3.28.1
  24. Apache Struts RCE Vulnerability
    High · 8.1 Exploited in attacks CVE-2016-3081 >= 2.3.19, < 2.3.20.3, >= 2.3.21, < 2.3.24.3, >= 2.3.25, < 2.3.28.1 2.3.20.3, 2.3.24.3, 2.3.28.1
  25. Arbitrary code execution in Apache Struts 2
    Critical · 9.8 CVE-2016-4438 >= 2.3.19, < 2.3.29 2.3.29
  26. Apache Struts RCE Vulnerability
    High · 8.8 CVE-2016-0785 >= 2.0.0, < 2.3.20.3, >= 2.3.24, < 2.3.24.3 2.3.20.3, 2.3.24.3
  27. Code injection in Apache Struts
    High · 8.1 CVE-2013-2115 >= 2.0.0, < 2.3.14.2 2.3.14.2
  28. Code injection in Apache Struts
    Critical · 9.8 Exploited in attacks CVE-2013-2251 < 2.3.15.1 2.3.15.1
  29. Apache Struts Remote Java Code Execution
    Critical · 9.8 Exploited in attacks CVE-2012-0391 < 2.2.3.1 2.2.3.1
  30. Unrestricted Upload of File with Dangerous Type in Apache Struts2
    High · 8.8 CVE-2012-1592 >= 2.0, < 2.5.22 2.5.22
  31. Struts ParameterInterceptor vulnerability allows remote command execution
    Critical · 9.8 CVE-2011-3923 >= 2.0.0, < 2.3.1.2 2.3.1.2
  32. Expression Language Injection in Apache Struts
    Critical · 9.8 CVE-2021-31805 >= 2.0.0, < 2.5.30 2.5.30
  33. Remote code execution in Apache Struts
    Critical · 9.8 Exploited in attacks CVE-2020-17530 >= 2.0.0, < 2.5.26 2.5.26
  34. Improperly Controlled Modification of Dynamically-Determined Object Attributes in Apache Struts
    Critical · 9.8 CVE-2019-0230 >= 2.0.0, < 2.5.22 2.5.22
  35. Apache Struts vulnerable to remote command execution (RCE) due to improper input validation this entry
    High · 8.1 Exploited in attacks CVE-2018-11776 >= 2.0.4, < 2.3.35, >= 2.5, < 2.5.17 2.3.35, 2.5.17
  36. Apache Struts vulnerable to remote arbitrary command execution due to improper input validation
    Critical · 10.0 Exploited in attacks CVE-2017-5638 >= 2.3.0, < 2.3.32, >= 2.5.0, < 2.5.10.1 2.3.32, 2.5.10.1
  37. Apache Struts allows entering a custom URL in a form field if built-in URLValidator is used
    High · 7.5 CVE-2017-9804 >= 2.3.7, < 2.3.34, >= 2.5.0, < 2.5.13 2.3.34, 2.5.13
  38. Spring AOP functionality (Struts) vulnerable to DoS attack
    High · 7.5 CVE-2017-9787 >= 2.3.7, < 2.3.33, >= 2.5.0, < 2.5.12 2.3.33, 2.5.12
  39. Apache Struts 2.0.1 uses an unintentional expression in a Freemarker tag instead of string literal
    Critical · 9.8 CVE-2017-12611 >= 2.0.1, < 2.3.34, >= 2.5.0, < 2.5.11 2.3.34, 2.5.11

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