How severe is CVE-2024-54677?

CVE-2024-54677 has a CVSS score of 5.3/10, rated MEDIUM. Review your exposure and patch according to your risk tolerance.

Which packages are affected by CVE-2024-54677?

CVE-2024-54677 affects the following packages: org.apache.tomcat:tomcat (Maven), org.apache.tomcat:tomcat (Maven), org.apache.tomcat:tomcat (Maven). Ecosystems affected: Maven.

How do I fix CVE-2024-54677?

Update org.apache.tomcat:tomcat to 11.0.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2024-54677 is resolved across your whole dependency graph.

How do I detect CVE-2024-54677 in my Maven dependencies?

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.

How do I mitigate CVE-2024-54677 if there is no patch (or I can't update yet)?

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.

Is CVE-2024-54677 actively exploited in the wild?

No public exploit code has been indexed for CVE-2024-54677 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for CVE-2024-54677?

CVE-2024-54677 has an EPSS (Exploit Prediction Scoring System) score of 1.9%, placing it in the 80th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is CVE-2024-54677?

CVE-2024-54677 is classified as Uncontrolled Resource Consumption (CWE-400). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was CVE-2024-54677 published, and has it been updated?

CVE-2024-54677 was published on December 17, 2024 and was last updated on October 29, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

☕

☕ Maven

Not in CISA KEV

MEDIUM severity

CVE-2024-54677 — tomcat

MEDIUMFix: apache/tomcat@f57a9d9

CVE-2024-54677 is a medium-severity (CVSS 5.3) Uncontrolled Resource Consumption 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: DoS in examples web application

Also known asBIT-tomcat-2024-54677GHSA-653p-vg55-5652

Published

Dec 17, 2024

Updated

Oct 29, 2026

Affected

3 pkgs

Patched

3 / 3

Exploits

None indexed

Exploitation data as of Nov 4, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2024-54677.

EPSS Exploitation Probability

via FIRST.org ↗

1.9%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs80th percentile — riskier than 80% of all scored CVEsHighest risk

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

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

3 pkgs affected

☕org.apache.tomcat:tomcat☕org.apache.tomcat:tomcat☕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

Uncontrolled Resource Consumption vulnerability in the examples web application provided with Apache Tomcat leads to denial of service.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.1, from 10.1.0-M1 through 10.1.33, from 9.0.0.M1 through 9.9.97. The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.0 though 8.5.100. Other, older, EOL versions may also be affected.

Users are recommended to upgrade to version 11.0.2, 10.1.34 or 9.0.98, which fixes the issue.

This vulnerability does not affect core Apache Tomcat server components (tomcat-catalina, tomcat-coyote, tomcat-embed-core, etc.). Removing the webapps/examples/ directory in production environments — as recommended by the Apache Tomcat Security Considerations documentation — eliminates the attack surface entirely.

Affected Packages

3 total 3 fixed

Ecosystem	Package	Vulnerable range	Fix
☕Maven	`org.apache.tomcat:tomcat`	≥ 11.0.0-M1&&< 11.0.2	11.0.2`org.apache.tomcat:tomcat:11.0.2`
☕Maven	`org.apache.tomcat:tomcat`	≥ 10.1.0-M1&&< 10.1.34	10.1.34`org.apache.tomcat:tomcat:10.1.34`
☕Maven	`org.apache.tomcat:tomcat`	≥ 9.0.0.M1&&< 9.0.98	9.0.98`org.apache.tomcat:tomcat:9.0.98`

Affected Products

2 products · 4 configurations

Application

tomcatapache

≥ 11.0.0 && < 11.0.2

range

bootstrap osnetapp

all

Detection & mitigation playbook

Open-source dependency

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.
Fix
Update org.apache.tomcat:tomcat to 11.0.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2024-54677 is resolved across your whole dependency graph.
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 HatLow

By default, the examples web application is only accessible to the localhost.

Product	Fixed in	Advisory
Red Hat Enterprise Linux 10	`tomcat-1:10.1.36-1.el10_0`	RHSA-2025:7497
Red Hat Enterprise Linux 8	`tomcat-1:9.0.120-1.el8_10`	RHSA-2026:68677
Red Hat Enterprise Linux 8.8 Telecommunications Update Service	`tomcat-1:9.0.120-1.el8_8`	RHSA-2026:68680
Red Hat Enterprise Linux 9	`tomcat-1:9.0.110-2.el9_8`	RHSA-2026:18916
Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions	`tomcat-1:9.0.120-1.el9_2`	RHSA-2026:68678
Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions	`tomcat-1:9.0.120-1.el9_4`	RHSA-2026:68679
Red Hat Enterprise Linux 9.6 Extended Update Support	`tomcat-1:9.0.120-1.el9_6`	RHSA-2026:68659

Frequently Asked Questions

Uncontrolled Resource Consumption vulnerability in the examples web application provided with Apache Tomcat leads to denial of service. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.1, from 10.1.0-M1 through 10.1.33, from 9.0.0.M1 through 9.9.97. The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.0 though 8.5.100. Other, older, EOL versions may also be affected. Users are recommended to upgrade to version 11.0.2, 10.1.34 or 9.0.98, which fixes the issue. This vulnerability does not affect core Apache Tomcat server components (to

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