CVE-2016-4431
Apache Struts Access Control Redirect
Apache Struts 2 2.3.20 through 2.3.28.1 allows remote attackers to bypass intended access restrictions and conduct redirection attacks by leveraging a default method.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
Apache Struts 2 2.3.20 through 2.3.28.1 allows remote attackers to bypass intended access restrictions and conduct redirection attacks by leveraging a default method.
- Record
CVE-2016-4431- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:P/A:N - Weakness
- CWE-20
- Updated
- 2026-11-02
CVE List No score
Apache Struts 2 2.3.20 through 2.3.28.1 allows remote attackers to bypass intended access restrictions and conduct redirection attacks by leveraging a default method.
- Record
CVE-2016-4431- Updated
- 2026-11-02
EUVDEUVD-2022-5405 No score
Apache Struts 2 2.3.20 through 2.3.28.1 allows remote attackers to bypass intended access restrictions and conduct redirection attacks by leveraging a default method.
- Record
EUVD-2022-5405- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-vq79-mgpx-2wx4
Apache Struts Access Control Redirect
Apache Struts 2 2.3.20 through 2.3.28.1 allows remote attackers to bypass intended access restrictions and conduct redirection attacks by leveraging a default method.
- Record
GHSA-vq79-mgpx-2wx4- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-20
- Updated
- 2026-11-02
OSV
Apache Struts 2 2.3.20 through 2.3.28.1 allows remote attackers to bypass intended access restrictions and conduct redirection attacks by leveraging a default method.
- Record
CVE-2016-4431- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Updated
- 2026-11-02
OSVGHSA-vq79-mgpx-2wx4
Apache Struts Access Control Redirect
Apache Struts 2 2.3.20 through 2.3.28.1 allows remote attackers to bypass intended access restrictions and conduct redirection attacks by leveraging a default method.
- Record
GHSA-vq79-mgpx-2wx4- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-20
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
org.apache.struts:struts-parentMaven |
2.3.20 to 2.3.28.1 | 2.3.29 |
org.apache.struts:struts-parentMaven |
2.3.20 up to 2.3.29 | 2.3.29 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2016-4431 is a high vulnerability (CVSS 7.5) in Apache Struts, published July 4, 2016. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 9.75%, the 95th percentile. Fixed in org.apache.struts:struts-parent 2.3.29.
References
securityfocus.com/bid/91284
bugzilla.redhat.com/show_bug.cgi?id=1348252
www-01.ibm.com/support/docview.wss?uid=swg21987854
struts.apache.org/docs/s2-040.html
jvn.jp/en/jp/JVN45093481/index.html
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jvndb.jvn.jp/jvndb/JVNDB-2016-000113
oracle.com/technetwork/security-advisory/cpujul2017-3236622.html
nvd.nist.gov/vuln/detail/CVE-2016-4431
web.archive.org/web/20210123145002/http://www.securityfocus.com/bid/91284
github.com/apache/struts/commit/eccc31ebce5430f9e91b9684c63eaaf885e603f9