CVE-2024-34750: Apache Tomcat Denial of Service Vulnerability

HIGH
Advisory Identifier: GHSA-wm9w-rjj3-j356
Share
CVSS 7.5
CWE-755 CWE-400
Published
Advisory Summary

CVE-2024-34750 is a HIGH (CVSS 7.5) denial of service vulnerability (CWE-755: Improper Handling of Exceptional Conditions) affecting Apache Tomcat libraries in the Maven ecosystem. The issue involves apache tomcat - denial of service. Remediation is available by upgrading affected packages to version 11.0.0-M21, 10.1.25, 9.0.90.

CVE-2024-34750 at a Glance

CVE Identifier CVE-2024-34750
GHSA Identifier GHSA-wm9w-rjj3-j356
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-755: Improper Handling of Exceptional Conditions
Affected Product Apache Tomcat
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity None (I:N)
Availability High (A:H)

How to Fix CVE-2024-34750

To remediate this vulnerability, upgrade all affected Apache Tomcat dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

org.apache.tomcat.embed:tomcat-embed-core fixed: 11.0.0-M21 
<dependency>
    <groupId>org.apache.tomcat.embed</groupId>
    <artifactId>tomcat-embed-core</artifactId>
    <version>11.0.0-M21</version>
</dependency>
org.apache.tomcat.embed:tomcat-embed-core fixed: 10.1.25 
<dependency>
    <groupId>org.apache.tomcat.embed</groupId>
    <artifactId>tomcat-embed-core</artifactId>
    <version>10.1.25</version>
</dependency>
org.apache.tomcat.embed:tomcat-embed-core fixed: 9.0.90 
<dependency>
    <groupId>org.apache.tomcat.embed</groupId>
    <artifactId>tomcat-embed-core</artifactId>
    <version>9.0.90</version>
</dependency>
org.apache.tomcat:tomcat-coyote fixed: 11.0.0-M21 
<dependency>
    <groupId>org.apache.tomcat</groupId>
    <artifactId>tomcat-coyote</artifactId>
    <version>11.0.0-M21</version>
</dependency>
org.apache.tomcat:tomcat-coyote fixed: 10.1.25 
<dependency>
    <groupId>org.apache.tomcat</groupId>
    <artifactId>tomcat-coyote</artifactId>
    <version>10.1.25</version>
</dependency>
org.apache.tomcat:tomcat-coyote fixed: 9.0.90 
<dependency>
    <groupId>org.apache.tomcat</groupId>
    <artifactId>tomcat-coyote</artifactId>
    <version>9.0.90</version>
</dependency>
org.apache.tomcat:tomcat-coyote fixed: Latest secure release 
<dependency>
    <groupId>org.apache.tomcat</groupId>
    <artifactId>tomcat-coyote</artifactId>
    <version>Latest secure release</version>
</dependency>
org.apache.tomcat.embed:tomcat-embed-core fixed: Latest secure release 
<dependency>
    <groupId>org.apache.tomcat.embed</groupId>
    <artifactId>tomcat-embed-core</artifactId>
    <version>Latest secure release</version>
</dependency>
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree -Dincludes=org.apache.tomcat.embed

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2024-34750, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=org.apache.tomcat.embed

Analyze the terminal output to locate any version of Apache Tomcat in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 11.0.0-M21), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.apache.tomcat.embed command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-755: Improper Handling of Exceptional Conditions, where the product does not handle or incorrectly handles an exceptional condition. In Apache Tomcat, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

Improper Handling of Exceptional Conditions, Uncontrolled Resource Consumption vulnerability in Apache Tomcat. When processing an HTTP/2 stream, Tomcat did not handle some cases of excessive HTTP headers correctly. This led to a miscounting of active HTTP/2 streams which in turn led to the use of an incorrect infinite timeout which allowed connections to remain open which should have been closed. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.0-M20, from 10.1.0-M1 through 10.1.24, from 9.0.0-M1 through 9.0.89. 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. Users are recommended to upgrade to version 11.0.0-M21, 10.1.25 or 9.0.90, which fixes the issue.

CVE-2024-34750 Affected Apache Tomcat Versions

8 component(s)
Fixed Versions:
11.0.0-M2110.1.259.0.90
Product / Package Ecosystem Affected Versions Fixed Version
org.apache.tomcat.embed:tomcat-embed-core
maven/org.apache.tomcat.embed/tomcat-embed-core
Maven
≥ 11.0.0-M1
< 11.0.0-M21
11.0.0-M21
org.apache.tomcat.embed:tomcat-embed-core
maven/org.apache.tomcat.embed/tomcat-embed-core
Maven
≥ 10.1.0-M1
< 10.1.25
10.1.25
org.apache.tomcat.embed:tomcat-embed-core
maven/org.apache.tomcat.embed/tomcat-embed-core
Maven
≥ 9.0.0-M1
< 9.0.90
9.0.90
org.apache.tomcat:tomcat-coyote
maven/org.apache.tomcat/tomcat-coyote
Maven
≥ 11.0.0-M1
< 11.0.0-M21
11.0.0-M21
org.apache.tomcat:tomcat-coyote
maven/org.apache.tomcat/tomcat-coyote
Maven
≥ 10.1.0-M1
< 10.1.25
10.1.25
org.apache.tomcat:tomcat-coyote
maven/org.apache.tomcat/tomcat-coyote
Maven
≥ 9.0.0-M1
< 9.0.90
9.0.90
org.apache.tomcat:tomcat-coyote
maven/org.apache.tomcat/tomcat-coyote
Maven
≥ 8.5.0
≤ 8.5.100
org.apache.tomcat.embed:tomcat-embed-core
maven/org.apache.tomcat.embed/tomcat-embed-core
Maven
≥ 8.5.0
≤ 8.5.100

References

NVD — CVE-2024-34750 NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-34750
Security Fix Commit FIX COMMIT
https://github.com/apache/tomcat/commit/2344a4c0d03e307ba6b8ab6dc8b894cc8bac63f2
Security Fix Commit FIX COMMIT
https://github.com/apache/tomcat/commit/2afae300c9ac9c0e516e2e9de580847d925365c3
Security Fix Commit FIX COMMIT
https://github.com/apache/tomcat/commit/9fec9a82887853402833a80b584e3762c7423f5f
Apache Tomcat Source Repository REPOSITORY
https://github.com/apache/tomcat
lists.apache.org/thread/4kqf0bc9gxym... WEB
https://lists.apache.org/thread/4kqf0bc9gxymjc2x7v3p7dvplnl77y8l
lists.debian.org/debian-lts-announce... WEB
https://lists.debian.org/debian-lts-announce/2025/07/msg00009.html
Apache Tomcat Security Information SECURITY
https://security.netapp.com/advisory/ntap-20240816-0004
Apache Tomcat Security Information SECURITY
https://tomcat.apache.org/security-10.html
Apache Tomcat Security Information SECURITY
https://tomcat.apache.org/security-11.html
Apache Tomcat Security Information SECURITY
https://tomcat.apache.org/security-9.html

Frequently Asked Questions

What is CVE-2024-34750?
CVE-2024-34750 is a security vulnerability in Apache Tomcat involving Apache Tomcat - Denial of Service under CWE-755: Improper Handling of Exceptional Conditions.
Which Apache Tomcat versions are affected?
Affected versions include releases prior to 11.0.0-M21, 10.1.25, 9.0.90 across affected packages: org.apache.tomcat.embed:tomcat-embed-core, org.apache.tomcat:tomcat-coyote.
What version fixes CVE-2024-34750?
Upgrading to 11.0.0-M21, 10.1.25, 9.0.90 (or the latest patched release for your respective branch) resolves the vulnerability.
Is tomcat-embed-core affected?
Yes, org.apache.tomcat.embed:tomcat-embed-core is affected in releases prior to 11.0.0-M21, 10.1.25, 9.0.90, Latest secure release. Upgrade your dependency to 11.0.0-M21, 10.1.25, 9.0.90, Latest secure release or later.
Is tomcat-coyote affected?
Yes, org.apache.tomcat:tomcat-coyote is affected in releases prior to 11.0.0-M21, 10.1.25, 9.0.90, Latest secure release. Upgrade your dependency to 11.0.0-M21, 10.1.25, 9.0.90, Latest secure release or later.
What is the CVSS score of CVE-2024-34750?
CVE-2024-34750 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2024-34750?
CVE-2024-34750 is classified under CWE-755: Improper Handling of Exceptional Conditions (The product does not handle or incorrectly handles an exceptional condition.).
How can I check Maven dependencies for CVE-2024-34750?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.apache.tomcat.embed'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-wm9w-rjj3-j356",
  "modified" : "2025-11-03T21:31:11Z",
  "published" : "2024-07-03T21:39:44Z",
  "aliases" : [ "CVE-2024-34750" ],
  "summary" : "Apache Tomcat - Denial of Service",
  "details" : "Improper Handling of Exceptional Conditions, Uncontrolled Resource Consumption vulnerability in Apache Tomcat. When processing an HTTP/2 stream, Tomcat did not handle some cases of excessive HTTP headers correctly. This led to a miscounting of active HTTP/2 streams which in turn led to the use of an incorrect infinite timeout which allowed connections to remain open which should have been closed. \n\nThis issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.0-M20, from 10.1.0-M1 through 10.1.24, from 9.0.0-M1 through 9.0.89. 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.\n\nUsers are recommended to upgrade to version 11.0.0-M21, 10.1.25 or 9.0.90, which fixes the issue.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.apache.tomcat.embed:tomcat-embed-core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "11.0.0-M1"
      }, {
        "fixed" : "11.0.0-M21"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.apache.tomcat.embed:tomcat-embed-core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "10.1.0-M1"
      }, {
        "fixed" : "10.1.25"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.apache.tomcat.embed:tomcat-embed-core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "9.0.0-M1"
      }, {
        "fixed" : "9.0.90"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.apache.tomcat:tomcat-coyote"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "11.0.0-M1"
      }, {
        "fixed" : "11.0.0-M21"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.apache.tomcat:tomcat-coyote"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "10.1.0-M1"
      }, {
        "fixed" : "10.1.25"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.apache.tomcat:tomcat-coyote"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "9.0.0-M1"
      }, {
        "fixed" : "9.0.90"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.apache.tomcat:tomcat-coyote"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "8.5.0"
      }, {
        "last_affected" : "8.5.100"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.apache.tomcat.embed:tomcat-embed-core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "8.5.0"
      }, {
        "last_affected" : "8.5.100"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2024-34750"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/apache/tomcat/commit/2344a4c0d03e307ba6b8ab6dc8b894cc8bac63f2"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/apache/tomcat/commit/2afae300c9ac9c0e516e2e9de580847d925365c3"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/apache/tomcat/commit/9fec9a82887853402833a80b584e3762c7423f5f"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/apache/tomcat"
  }, {
    "type" : "WEB",
    "url" : "https://lists.apache.org/thread/4kqf0bc9gxymjc2x7v3p7dvplnl77y8l"
  }, {
    "type" : "WEB",
    "url" : "https://lists.debian.org/debian-lts-announce/2025/07/msg00009.html"
  }, {
    "type" : "WEB",
    "url" : "https://security.netapp.com/advisory/ntap-20240816-0004"
  }, {
    "type" : "WEB",
    "url" : "https://tomcat.apache.org/security-10.html"
  }, {
    "type" : "WEB",
    "url" : "https://tomcat.apache.org/security-11.html"
  }, {
    "type" : "WEB",
    "url" : "https://tomcat.apache.org/security-9.html"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-400", "CWE-755" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-07-05T20:39:41Z",
    "nvd_published_at" : "2024-07-03T20:15:04Z"
  }
}