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CVE-2024-34750

27
FAUCET Score

CVE-2024-34750 is a high-severity vulnerability in Apache Tomcat versions 11.0.0-M1 through 11.0.0-M20, 10.1.0-M1 through 10.1.24, and 9.0.0-M1 through 9.0.89, as well as some end-of-life versions. It stems from improper handling of excessive HTTP/2 headers, leading to incorrect stream counting and persistent open connections, causing an uncontrolled resource consumption issue. With a CVSS score of 7.5 (High), this vulnerability can be exploited remotely with low attack complexity, potentially leading to denial-of-service. While there is no known active exploitation or public exploit code, the vulnerability has garnered significant community discussion and media coverage, indicating awareness and potential future interest. Users are advised to upgrade to Apache Tomcat 11.0.0-M21, 10.1.25, or 9.0.90 to remediate this flaw.

Impacted Technologies

VendorProductVersion(s)CPE
>= 9.0.0, < 9.0.90CPE matchmatch criteria
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*
>= 10.1.0, < 10.1.25CPE matchmatch criteria
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*
11.0.0CPE matchmatch criteria
cpe:2.3:a:apache:tomcat:11.0.0:milestone1:*:*:*:*:*:*
11.0.0CPE matchmatch criteria
cpe:2.3:a:apache:tomcat:11.0.0:milestone10:*:*:*:*:*:*
11.0.0CPE matchmatch criteria
cpe:2.3:a:apache:tomcat:11.0.0:milestone11:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
4.60%
Probability of exploitation in next 30 days
EPSS Percentile
90.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0460 is in the 84th percentile among its peer group of 51,551 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (18)

mavenpatch availablevia ghsa
Product: org.apache.tomcat.embed:tomcat-embed-coreFixed in: 11.0.0-M21
mavenpatch availablevia ghsa
Product: org.apache.tomcat.embed:tomcat-embed-coreFixed in: 10.1.25
mavenpatch availablevia ghsa
Product: org.apache.tomcat.embed:tomcat-embed-coreFixed in: 9.0.90
mavenpatch availablevia ghsa
Product: org.apache.tomcat:tomcat-coyoteFixed in: 11.0.0-M21
mavenpatch availablevia ghsa
Product: org.apache.tomcat:tomcat-coyoteFixed in: 10.1.25
mavenpatch availablevia ghsa
Product: org.apache.tomcat:tomcat-coyoteFixed in: 9.0.90
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: tomcat-1:9.0.87-1.el8_10.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.8 Extended Update SupportFixed in: tomcat-1:9.0.87-1.el8_8.3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: tomcat-1:9.0.87-1.el9_4.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9.2 Extended Update SupportFixed in: tomcat-1:9.0.87-1.el9_2.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Web Server 5Fixed in: jws5-tomcat
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Web Server 5.8 on RHEL 7Fixed in: jws5-tomcat-0:9.0.87-5.redhat_00005.1.el7jws
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Web Server 5.8 on RHEL 8Fixed in: jws5-tomcat-0:9.0.87-5.redhat_00005.1.el8jws
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Web Server 5.8 on RHEL 9Fixed in: jws5-tomcat-0:9.0.87-5.redhat_00005.1.el9jws
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Web Server 6Fixed in: jws6-tomcat
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Web Server 6.0 on RHEL 8Fixed in: jws6-tomcat-0:10.1.8-10.redhat_00018.1.el8jws
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Web Server 6.0 on RHEL 9Fixed in: jws6-tomcat-0:10.1.8-10.redhat_00018.1.el9jws
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: pki-servlet-engine

Vendor Advisories (2)

mavenGHSA-wm9w-rjj3-j356high

Apache Tomcat - Denial of Service

Jul 3, 2024
redhatCVE-2024-34750Important

tomcat: Improper Handling of Exceptional Conditions

Jul 3, 2024

References

lists.debian.org / debian-lts-announce/2025/07/msg00009.html
security.netapp.com / advisory/ntap-20240816-0004
Third Party Advisory
lists.apache.org / thread/4kqf0bc9gxymjc2x7v3p7dvplnl77y8l
Vendor Advisory