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TI-2024-23041 Aliases CVE-2024-34750GHSA-wm9w-rjj3-j356

Apache Tomcat: HTTP/2 excess header handling DoS

Priority MEDIUM 46CWE-400Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 13 fixed, 1 without a fix

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-400.

Summary

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. Other EOL versions may also be affected. Users are recommended to upgrade to version 11.0.0-M21, 10.1.25 or 9.0.90, which fixes the issue.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.04602 91st percentileScored 2026-11-07
Fix Partial org.apache.tomcat.embed:tomcat-embed-core (Maven): 11.0.0-M21, 10.1.25, 9.0.90org.apache.tomcat:tomcat-coyote (Maven): 11.0.0-M21, 10.1.25, 9.0.90Red Hat: 10 advisoriesRed Hat: 13 fixed, 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ApacheApache Tomcat11.0.0-M1 – 11.0.0-M20; 10.1.0-M1 – 10.1.24; 9.0.0-M1 – 9.0.89; 8.5.0 – 8.5.100—No fix listedCNA
—org.apache.tomcat.embed:tomcat-embed-core (Maven)11.0.0-M1 to before 11.0.0-M2111.0.0-M21Patch availableGHSA-wm9w-rjj3-j356
—org.apache.tomcat.embed:tomcat-embed-core (Maven)10.1.0-M1 to before 10.1.2510.1.25Patch availableGHSA-wm9w-rjj3-j356
—org.apache.tomcat.embed:tomcat-embed-core (Maven)9.0.0-M1 to before 9.0.909.0.90Patch availableGHSA-wm9w-rjj3-j356
—org.apache.tomcat:tomcat-coyote (Maven)11.0.0-M1 to before 11.0.0-M2111.0.0-M21Patch availableGHSA-wm9w-rjj3-j356
—org.apache.tomcat:tomcat-coyote (Maven)10.1.0-M1 to before 10.1.2510.1.25Patch availableGHSA-wm9w-rjj3-j356
—org.apache.tomcat:tomcat-coyote (Maven)9.0.0-M1 to before 9.0.909.0.90Patch availableGHSA-wm9w-rjj3-j356
—org.apache.tomcat:tomcat-coyote (Maven)8.5.0 – 8.5.100—No fix listedGHSA-wm9w-rjj3-j356
—org.apache.tomcat.embed:tomcat-embed-core (Maven)8.5.0 – 8.5.100—No fix listedGHSA-wm9w-rjj3-j356
  • Apache Tomcat VendorApache Affected 11.0.0-M1 – 11.0.0-M20; 10.1.0-M1 – 10.1.24; 9.0.0-M1 – 9.0.89; 8.5.0 – 8.5.100 Fixed in — No fix listed CNA
  • org.apache.tomcat.embed:tomcat-embed-core (Maven) Vendor— Affected 11.0.0-M1 to before 11.0.0-M21 Fixed in 11.0.0-M21 Patch available GHSA-wm9w-rjj3-j356
  • org.apache.tomcat.embed:tomcat-embed-core (Maven) Vendor— Affected 10.1.0-M1 to before 10.1.25 Fixed in 10.1.25 Patch available GHSA-wm9w-rjj3-j356
  • org.apache.tomcat.embed:tomcat-embed-core (Maven) Vendor— Affected 9.0.0-M1 to before 9.0.90 Fixed in 9.0.90 Patch available GHSA-wm9w-rjj3-j356
  • org.apache.tomcat:tomcat-coyote (Maven) Vendor— Affected 11.0.0-M1 to before 11.0.0-M21 Fixed in 11.0.0-M21 Patch available GHSA-wm9w-rjj3-j356
  • org.apache.tomcat:tomcat-coyote (Maven) Vendor— Affected 10.1.0-M1 to before 10.1.25 Fixed in 10.1.25 Patch available GHSA-wm9w-rjj3-j356
  • org.apache.tomcat:tomcat-coyote (Maven) Vendor— Affected 9.0.0-M1 to before 9.0.90 Fixed in 9.0.90 Patch available GHSA-wm9w-rjj3-j356
  • org.apache.tomcat:tomcat-coyote (Maven) Vendor— Affected 8.5.0 – 8.5.100 Fixed in — No fix listed GHSA-wm9w-rjj3-j356
  • org.apache.tomcat.embed:tomcat-embed-core (Maven) Vendor— Affected 8.5.0 – 8.5.100 Fixed in — No fix listed GHSA-wm9w-rjj3-j356

CPE configurations NVD · 22

CPEVersionsRoleVendor
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*9.0.0 to before 9.0.90; 10.1.0 to before 10.1.25VulnerableApache
cpe:2.3:a:apache:tomcat:11.0.0:milestone1:*:*:*:*:*:*11.0.0 milestone1VulnerableApache
cpe:2.3:a:apache:tomcat:11.0.0:milestone10:*:*:*:*:*:*11.0.0 milestone10VulnerableApache
cpe:2.3:a:apache:tomcat:11.0.0:milestone11:*:*:*:*:*:*11.0.0 milestone11VulnerableApache
cpe:2.3:a:apache:tomcat:11.0.0:milestone12:*:*:*:*:*:*11.0.0 milestone12VulnerableApache
cpe:2.3:a:apache:tomcat:11.0.0:milestone13:*:*:*:*:*:*11.0.0 milestone13VulnerableApache
cpe:2.3:a:apache:tomcat:11.0.0:milestone14:*:*:*:*:*:*11.0.0 milestone14VulnerableApache
cpe:2.3:a:apache:tomcat:11.0.0:milestone15:*:*:*:*:*:*11.0.0 milestone15VulnerableApache
cpe:2.3:a:apache:tomcat:11.0.0:milestone16:*:*:*:*:*:*11.0.0 milestone16VulnerableApache
cpe:2.3:a:apache:tomcat:11.0.0:milestone17:*:*:*:*:*:*11.0.0 milestone17VulnerableApache
  • cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* Versions 9.0.0 to before 9.0.90; 10.1.0 to before 10.1.25 Vulnerable ·Apache
  • cpe:2.3:a:apache:tomcat:11.0.0:milestone1:*:*:*:*:*:* Versions 11.0.0 milestone1 Vulnerable ·Apache
  • cpe:2.3:a:apache:tomcat:11.0.0:milestone10:*:*:*:*:*:* Versions 11.0.0 milestone10 Vulnerable ·Apache
  • cpe:2.3:a:apache:tomcat:11.0.0:milestone11:*:*:*:*:*:* Versions 11.0.0 milestone11 Vulnerable ·Apache
  • cpe:2.3:a:apache:tomcat:11.0.0:milestone12:*:*:*:*:*:* Versions 11.0.0 milestone12 Vulnerable ·Apache
  • cpe:2.3:a:apache:tomcat:11.0.0:milestone13:*:*:*:*:*:* Versions 11.0.0 milestone13 Vulnerable ·Apache
  • cpe:2.3:a:apache:tomcat:11.0.0:milestone14:*:*:*:*:*:* Versions 11.0.0 milestone14 Vulnerable ·Apache
  • cpe:2.3:a:apache:tomcat:11.0.0:milestone15:*:*:*:*:*:* Versions 11.0.0 milestone15 Vulnerable ·Apache
  • cpe:2.3:a:apache:tomcat:11.0.0:milestone16:*:*:*:*:*:* Versions 11.0.0 milestone16 Vulnerable ·Apache
  • cpe:2.3:a:apache:tomcat:11.0.0:milestone17:*:*:*:*:*:* Versions 11.0.0 milestone17 Vulnerable ·Apache
Show 12 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:apache:tomcat:11.0.0:milestone18:*:*:*:*:*:*11.0.0 milestone18VulnerableApache
cpe:2.3:a:apache:tomcat:11.0.0:milestone19:*:*:*:*:*:*11.0.0 milestone19VulnerableApache
cpe:2.3:a:apache:tomcat:11.0.0:milestone2:*:*:*:*:*:*11.0.0 milestone2VulnerableApache
cpe:2.3:a:apache:tomcat:11.0.0:milestone20:*:*:*:*:*:*11.0.0 milestone20VulnerableApache
cpe:2.3:a:apache:tomcat:11.0.0:milestone3:*:*:*:*:*:*11.0.0 milestone3VulnerableApache
cpe:2.3:a:apache:tomcat:11.0.0:milestone4:*:*:*:*:*:*11.0.0 milestone4VulnerableApache
cpe:2.3:a:apache:tomcat:11.0.0:milestone5:*:*:*:*:*:*11.0.0 milestone5VulnerableApache
cpe:2.3:a:apache:tomcat:11.0.0:milestone6:*:*:*:*:*:*11.0.0 milestone6VulnerableApache
cpe:2.3:a:apache:tomcat:11.0.0:milestone7:*:*:*:*:*:*11.0.0 milestone7VulnerableApache
cpe:2.3:a:apache:tomcat:11.0.0:milestone8:*:*:*:*:*:*11.0.0 milestone8VulnerableApache
cpe:2.3:a:apache:tomcat:11.0.0:milestone9:*:*:*:*:*:*11.0.0 milestone9VulnerableApache
cpe:2.3:a:netapp:ontap_tools:9:*:*:*:*:vmware_vsphere:*:*9VulnerableNetApp
  • cpe:2.3:a:apache:tomcat:11.0.0:milestone18:*:*:*:*:*:* Versions 11.0.0 milestone18 Vulnerable ·Apache
  • cpe:2.3:a:apache:tomcat:11.0.0:milestone19:*:*:*:*:*:* Versions 11.0.0 milestone19 Vulnerable ·Apache
  • cpe:2.3:a:apache:tomcat:11.0.0:milestone2:*:*:*:*:*:* Versions 11.0.0 milestone2 Vulnerable ·Apache
  • cpe:2.3:a:apache:tomcat:11.0.0:milestone20:*:*:*:*:*:* Versions 11.0.0 milestone20 Vulnerable ·Apache
  • cpe:2.3:a:apache:tomcat:11.0.0:milestone3:*:*:*:*:*:* Versions 11.0.0 milestone3 Vulnerable ·Apache
  • cpe:2.3:a:apache:tomcat:11.0.0:milestone4:*:*:*:*:*:* Versions 11.0.0 milestone4 Vulnerable ·Apache
  • cpe:2.3:a:apache:tomcat:11.0.0:milestone5:*:*:*:*:*:* Versions 11.0.0 milestone5 Vulnerable ·Apache
  • cpe:2.3:a:apache:tomcat:11.0.0:milestone6:*:*:*:*:*:* Versions 11.0.0 milestone6 Vulnerable ·Apache
  • cpe:2.3:a:apache:tomcat:11.0.0:milestone7:*:*:*:*:*:* Versions 11.0.0 milestone7 Vulnerable ·Apache
  • cpe:2.3:a:apache:tomcat:11.0.0:milestone8:*:*:*:*:*:* Versions 11.0.0 milestone8 Vulnerable ·Apache
  • cpe:2.3:a:apache:tomcat:11.0.0:milestone9:*:*:*:*:*:* Versions 11.0.0 milestone9 Vulnerable ·Apache
  • cpe:2.3:a:netapp:ontap_tools:9:*:*:*:*:vmware_vsphere:*:* Versions 9 Vulnerable ·NetApp

Remediation

  • Fix · GHSA-wm9w-rjj3-j356 org.apache.tomcat.embed:tomcat-embed-core (Maven) Fixed in 11.0.0-M21 Advisory →
  • Fix · GHSA-wm9w-rjj3-j356 org.apache.tomcat.embed:tomcat-embed-core (Maven) Fixed in 10.1.25 Advisory →
  • Fix · GHSA-wm9w-rjj3-j356 org.apache.tomcat.embed:tomcat-embed-core (Maven) Fixed in 9.0.90 Advisory →
  • Fix · GHSA-wm9w-rjj3-j356 org.apache.tomcat:tomcat-coyote (Maven) Fixed in 11.0.0-M21 Advisory →
  • Fix · GHSA-wm9w-rjj3-j356 org.apache.tomcat:tomcat-coyote (Maven) Fixed in 10.1.25 Advisory →
  • Fix · GHSA-wm9w-rjj3-j356 org.apache.tomcat:tomcat-coyote (Maven) Fixed in 9.0.90 Advisory →

Red Hat 10 advisories

  • RHSA-2026:67163 Released 2026-09-14 · Red Hat rating Important
    tomcat9 security update
    • Red Hat Enterprise Linux AppStream EUS (v. 10.0) tomcat9-1:9.0.120-1.el10_0, tomcat9-admin-webapps-1:9.0.120-1.el10_0, tomcat9-docs-webapp-1:9.0.120-1.el10_0 +5
  • RHSA-2026:18536 Released 2026-05-19 · Red Hat rating Important
    tomcat9 security update
    • Red Hat Enterprise Linux AppStream (v. 10) tomcat9-1:9.0.110-2.el10_2, tomcat9-admin-webapps-1:9.0.110-2.el10_2, tomcat9-docs-webapp-1:9.0.110-2.el10_2 +5
  • RHSA-2024:5696 Released 2024-08-21 · Red Hat rating Important
    tomcat security update
    • Red Hat Enterprise Linux AppStream EUS (v.9.2) tomcat-1:9.0.87-1.el9_2.2, tomcat-admin-webapps-1:9.0.87-1.el9_2.2, tomcat-docs-webapp-1:9.0.87-1.el9_2.2 +5
Show 7 more Red Hat advisories
  • RHSA-2024:5693 Released 2024-08-21 · Red Hat rating Important
    tomcat security update
    • Red Hat Enterprise Linux AppStream (v. 9) tomcat-1:9.0.87-1.el9_4.2, tomcat-admin-webapps-1:9.0.87-1.el9_4.2, tomcat-docs-webapp-1:9.0.87-1.el9_4.2 +5
  • RHSA-2024:5695 Released 2024-08-21 · Red Hat rating Important
    tomcat security update
    • Red Hat Enterprise Linux AppStream EUS (v.8.8) tomcat-1:9.0.87-1.el8_8.3, tomcat-admin-webapps-1:9.0.87-1.el8_8.3, tomcat-docs-webapp-1:9.0.87-1.el8_8.3 +5
  • RHSA-2024:5694 Released 2024-08-21 · Red Hat rating Important
    tomcat security update
    • Red Hat Enterprise Linux AppStream (v. 8) tomcat-1:9.0.87-1.el8_10.2, tomcat-admin-webapps-1:9.0.87-1.el8_10.2, tomcat-docs-webapp-1:9.0.87-1.el8_10.2 +5
  • RHSA-2024:5024 Released 2024-08-06 · Red Hat rating Important
    Red Hat JBoss Web Server 5.8.1 release and security update
    • Red Hat JBoss Web Server 5.8 for RHEL 7 Server jws5-tomcat-9.0.87-5.redhat_00005.1.el7jws, jws5-tomcat-admin-webapps-9.0.87-5.redhat_00005.1.el7jws, jws5-tomcat-docs-webapp-9.0.87-5.redhat_00005.1.el7jws +9
    • Red Hat JBoss Web Server 5.8 for RHEL 8 jws5-tomcat-9.0.87-5.redhat_00005.1.el8jws, jws5-tomcat-admin-webapps-9.0.87-5.redhat_00005.1.el8jws, jws5-tomcat-docs-webapp-9.0.87-5.redhat_00005.1.el8jws +7
    • Red Hat JBoss Web Server 5.8 for RHEL 9 jws5-tomcat-9.0.87-5.redhat_00005.1.el9jws, jws5-tomcat-admin-webapps-9.0.87-5.redhat_00005.1.el9jws, jws5-tomcat-docs-webapp-9.0.87-5.redhat_00005.1.el9jws +7
  • RHSA-2024:4976 Released 2024-08-06 · Red Hat rating Important
    Red Hat JBoss Web Server 6.0.3 release and security update
    • Red Hat JBoss Web Server 6.0 for RHEL 8 jws6-tomcat-10.1.8-10.redhat_00018.1.el8jws, jws6-tomcat-admin-webapps-10.1.8-10.redhat_00018.1.el8jws, jws6-tomcat-docs-webapp-10.1.8-10.redhat_00018.1.el8jws +7
    • Red Hat JBoss Web Server 6.0 for RHEL 9 jws6-tomcat-10.1.8-10.redhat_00018.1.el9jws, jws6-tomcat-admin-webapps-10.1.8-10.redhat_00018.1.el9jws, jws6-tomcat-docs-webapp-10.1.8-10.redhat_00018.1.el9jws +7
  • RHSA-2024:4977 Released 2024-08-06 · Red Hat rating Important
    Red Hat JBoss Web Server 6.0.3 release and security update
    • Red Hat JBoss Web Server 6
  • RHSA-2024:5025 Released 2024-08-06 · Red Hat rating Important
    Red Hat JBoss Web Server 5.8.1 release and security update
    • Red Hat JBoss Web Server 5

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 9AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux AppStream (v. 10)Fixed RHSA-2026:18536
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2024:5694
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2024:5693
Red Hat Enterprise Linux AppStream EUS (v. 10.0)Fixed RHSA-2026:67163
Red Hat Enterprise Linux AppStream EUS (v.8.8)Fixed RHSA-2024:5695
Red Hat Enterprise Linux AppStream EUS (v.9.2)Fixed RHSA-2024:5696
Red Hat JBoss Web Server 5Fixed RHSA-2024:5025
Red Hat JBoss Web Server 5.8 for RHEL 7 ServerFixed RHSA-2024:5024
Red Hat JBoss Web Server 5.8 for RHEL 8Fixed RHSA-2024:5024
Red Hat JBoss Web Server 5.8 for RHEL 9Fixed RHSA-2024:5024
Red Hat JBoss Web Server 6Fixed RHSA-2024:4977
Red Hat JBoss Web Server 6.0 for RHEL 8Fixed RHSA-2024:4976
Red Hat JBoss Web Server 6.0 for RHEL 9Fixed RHSA-2024:4976
Not affected: 3 products
  • Red Hat Enterprise Linux 10
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-34750
  2. 2026-10-03 Alias added: GHSA-wm9w-rjj3-j356
  3. 2026-10-09 Fix available: RHSA-2024:4977 · Red Hat
  4. 2026-11-05 Fix available: Red Hat JBoss Web Server 6 · Red Hat

References

Advisory 3

Other 9

  • TI-2025-18529 Apache Tomcat: Potential RCE and/or information disclosure and/or information corruption with partial PUT KEVCVSS 3.1CRITICAL 10.0
  • TI-2020-01862 Improper privilege management in Apache Tomcat KEVCVSS 3.1CRITICAL 9.8
  • TI-2016-07192 Improper access control in Apache Tomcat KEVCVSS 3.1CRITICAL 9.8
  • TI-2017-09342 Unrestricted file upload in Apache Tomcat KEVCVSS 3.1HIGH 8.1
  • TI-2017-09340 Unrestricted file upload in Apache Tomcat KEVCVSS 3.1HIGH 8.1
  • TI-2026-26741 Apache Tomcat: Fix for CVE-2026-29146 allowed bypass of EncryptInterceptor KEVCVSS 3.1HIGH 7.5
See all 273 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences