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CVE-2005-3510 — tomcat

CVE-2005-3510 is a security vulnerability in org.apache.tomcat:tomcat. A fix is available for org.apache.tomcat:tomcat — see the affected versions and patch details below.

Apache Tomcat Vulnerable to Denial of Service (DoS) via Simultaneous Requests

Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Nov 4, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
6.0%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs93th percentile — riskier than 93% of all scored CVEsHighest risk
1.59%9.35%17.1%24.9%20.5%6.0%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

Real-World Exposure

1 pkg affected
☕org.apache.tomcat:tomcat

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

Description

Apache Tomcat 5.5.0 to 5.5.11 allows remote attackers to cause a denial of service (CPU consumption) via a large number of simultaneous requests to list a web directory that has a large number of files.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
☕Mavenorg.apache.tomcat:tomcat≥ 5.5.0&&< 5.5.125.5.12org.apache.tomcat:tomcat:5.5.12

Affected Products

1 product · 12 configurations
Application
tomcatapache
12 versions
5.5.05.5.15.5.25.5.35.5.45.5.55.5.65.5.75.5.85.5.95.5.105.5.11

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.apache.tomcat:tomcat, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update org.apache.tomcat:tomcat to 5.5.12 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2005-3510 is resolved across your whole dependency graph.

  3. Workarounds

    Cap what an attacker can consume: apply request size, rate and timeout limits in front of the affected component, and run it with memory and CPU limits so exhaustion degrades one worker rather than the whole service.

Fixing This On Your OS

If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.

Red HatModerate
ProductFixed inAdvisory
Red Hat Application Server v2 4ASsee advisoryRHSA-2006:0161
Red Hat Certificate System 7.3ant-0:1.6.5-1jpp_1rhRHSA-2010:0602
Red Hat Network Satellite Server v 4.0jakarta-commons-pool-0:1.2-2jpp_2rhRHSA-2007:1069
Red Hat Network Satellite Server v 4.2jabberd-0:2.0s10-3.38.rhnRHSA-2008:0524
Red Hat Network Satellite Server v 5.0jabberd-0:2.0s10-3.38.rhnRHSA-2008:0261
RHAPS Version 1 for RHEL 3tomcat5-0:5.0.30-0jpp_5rhRHSA-2007:0340

Frequently Asked Questions

Apache Tomcat 5.5.0 to 5.5.11 allows remote attackers to cause a denial of service (CPU consumption) via a large number of simultaneous requests to list a web directory that has a large number of files.
O3 Security · Impact-Aware SCA

Is CVE-2005-3510 in your dependencies?

Find it across Maven, including transitive dependencies.

CVE-2005-3510: tomcat DoS — Fixed in 5.5.12