CVE-2024-24549

Denial of Service due to improper input validation vulnerability for HTTP/2 requests in Apache Tomcat. When processing an HTTP/2 request, if the request exceeded any of the configured limits for headers, the associated HTTP/2 stream was not reset until after all of the headers had been processed.This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.0-M16, from 10.1.0-M1 through 10.1.18, from 9.0.0-M1 through 9.0.85, from 8.5.0 through 8.5.98.

Users are recommended to upgrade to version 11.0.0-M17, 10.1.19, 9.0.86 or 8.5.99 which fix the issue.

The application does not adequately validate input before processing it, allowing unexpected values to reach sensitive code paths. Typical impact: varies by context: data corruption, logic bypass, or denial of service.

CVE-2024-24549 has a CVSS score of 7.5 (Medium). The vector is network-reachable, no privileges required, and no user interaction. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (8.5.99, 9.0.86, 10.1.19, 11.0.0-M17); upgrading removes the vulnerable code path.

Kodem intelligence

1. What is CVE-2024-24549? CVE-2024-24549 is a medium-severity improper input validation vulnerability in org.apache.tomcat.embed:tomcat-embed-core (maven), affecting versions >= 8.5.0, <= 8.5.98. It is fixed in 8.5.99, 9.0.86, 10.1.19, 11.0.0-M17. The application does not adequately validate input before processing it, allowing unexpected values to reach sensitive code paths.
2. How severe is CVE-2024-24549? CVE-2024-24549 has a CVSS score of 7.5 (Medium). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
3. Which packages are affected by CVE-2024-24549?
   • org.apache.tomcat.embed:tomcat-embed-core (maven) (versions >= 8.5.0, <= 8.5.98)
   • org.apache.tomcat:tomcat-coyote (maven) (versions >= 11.0.0-M1, <= 11.0.0-M16)
4. Is there a fix for CVE-2024-24549? Yes. CVE-2024-24549 is fixed in 8.5.99, 9.0.86, 10.1.19, 11.0.0-M17. Upgrade to this version or later.
5. Is CVE-2024-24549 exploitable, and should I be worried? Whether CVE-2024-24549 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
6. What actually determines whether CVE-2024-24549 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
7. How do I fix CVE-2024-24549?
   • Upgrade org.apache.tomcat.embed:tomcat-embed-core to 8.5.99 or later
   • Upgrade org.apache.tomcat.embed:tomcat-embed-core to 9.0.86 or later
   • Upgrade org.apache.tomcat.embed:tomcat-embed-core to 10.1.19 or later
   • Upgrade org.apache.tomcat.embed:tomcat-embed-core to 11.0.0-M17 or later
   • Upgrade org.apache.tomcat:tomcat-coyote to 11.0.0-M17 or later
   • Upgrade org.apache.tomcat:tomcat-coyote to 10.1.19 or later
   • Upgrade org.apache.tomcat:tomcat-coyote to 9.0.86 or later
   • Upgrade org.apache.tomcat:tomcat-coyote to 8.5.99 or later