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TI-2024-16171 Aliases CVE-2024-24549GHSA-7w75-32cg-r6g2

Apache Tomcat: HTTP/2 header handling DoS

Priority MEDIUM 53CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 12 fixed, 3 without a fix

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA, GitHub and Red Hat.

Summary

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. Other, older, EOL versions may also be affected. 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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.23072 97th percentileScored 2026-11-07
Fix Partial org.apache.tomcat:tomcat-coyote (Maven): 11.0.0-M17, 10.1.19, 9.0.86 +1org.apache.tomcat.embed:tomcat-embed-core (Maven): 8.5.99, 9.0.86, 10.1.19 +1Red Hat: 9 advisoriesRed Hat: 12 fixed, 3 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
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-M16; 10.1.0-M1 – 10.1.18; 9.0.0-M1 – 9.0.85; 8.5.0 – 8.5.98—No fix listedCNA
—org.apache.tomcat:tomcat-coyote (Maven)11.0.0-M1 to before 11.0.0-M1711.0.0-M17Patch availableGHSA-7w75-32cg-r6g2
—org.apache.tomcat:tomcat-coyote (Maven)10.1.0-M1 to before 10.1.1910.1.19Patch availableGHSA-7w75-32cg-r6g2
—org.apache.tomcat:tomcat-coyote (Maven)9.0.0-M1 to before 9.0.869.0.86Patch availableGHSA-7w75-32cg-r6g2
—org.apache.tomcat:tomcat-coyote (Maven)8.5.0 to before 8.5.998.5.99Patch availableGHSA-7w75-32cg-r6g2
—org.apache.tomcat.embed:tomcat-embed-core (Maven)8.5.0 to before 8.5.998.5.99Patch availableGHSA-7w75-32cg-r6g2
—org.apache.tomcat.embed:tomcat-embed-core (Maven)9.0.0-M1 to before 9.0.869.0.86Patch availableGHSA-7w75-32cg-r6g2
—org.apache.tomcat.embed:tomcat-embed-core (Maven)10.1.0-M1 to before 10.1.1910.1.19Patch availableGHSA-7w75-32cg-r6g2
—org.apache.tomcat.embed:tomcat-embed-core (Maven)11.0.0-M1 to before 11.0.0-M1711.0.0-M17Patch availableGHSA-7w75-32cg-r6g2
  • Apache Tomcat VendorApache Affected 11.0.0-M1 – 11.0.0-M16; 10.1.0-M1 – 10.1.18; 9.0.0-M1 – 9.0.85; 8.5.0 – 8.5.98 Fixed in — No fix listed CNA
  • org.apache.tomcat:tomcat-coyote (Maven) Vendor— Affected 11.0.0-M1 to before 11.0.0-M17 Fixed in 11.0.0-M17 Patch available GHSA-7w75-32cg-r6g2
  • org.apache.tomcat:tomcat-coyote (Maven) Vendor— Affected 10.1.0-M1 to before 10.1.19 Fixed in 10.1.19 Patch available GHSA-7w75-32cg-r6g2
  • org.apache.tomcat:tomcat-coyote (Maven) Vendor— Affected 9.0.0-M1 to before 9.0.86 Fixed in 9.0.86 Patch available GHSA-7w75-32cg-r6g2
  • org.apache.tomcat:tomcat-coyote (Maven) Vendor— Affected 8.5.0 to before 8.5.99 Fixed in 8.5.99 Patch available GHSA-7w75-32cg-r6g2
  • org.apache.tomcat.embed:tomcat-embed-core (Maven) Vendor— Affected 8.5.0 to before 8.5.99 Fixed in 8.5.99 Patch available GHSA-7w75-32cg-r6g2
  • org.apache.tomcat.embed:tomcat-embed-core (Maven) Vendor— Affected 9.0.0-M1 to before 9.0.86 Fixed in 9.0.86 Patch available GHSA-7w75-32cg-r6g2
  • org.apache.tomcat.embed:tomcat-embed-core (Maven) Vendor— Affected 10.1.0-M1 to before 10.1.19 Fixed in 10.1.19 Patch available GHSA-7w75-32cg-r6g2
  • org.apache.tomcat.embed:tomcat-embed-core (Maven) Vendor— Affected 11.0.0-M1 to before 11.0.0-M17 Fixed in 11.0.0-M17 Patch available GHSA-7w75-32cg-r6g2

CPE configurations NVD · 20

CPEVersionsRoleVendor
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*8.5.0 to before 8.5.99; 9.0.0 to before 9.0.86; 10.1.0 to before 10.1.19VulnerableApache
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:milestone2:*:*:*:*:*:*11.0.0 milestone2VulnerableApache
  • cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* Versions 8.5.0 to before 8.5.99; 9.0.0 to before 9.0.86; 10.1.0 to before 10.1.19 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:milestone2:*:*:*:*:*:* Versions 11.0.0 milestone2 Vulnerable ·Apache
Show 10 more CPE
CPEVersionsRoleVendor
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:o:debian:debian_linux:10.0:*:*:*:*:*:*:*10.0VulnerableDebian
cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*39VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:40:*:*:*:*:*:*:*40VulnerableFedoraproject
  • 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:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian
  • cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:* Versions 39 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:40:*:*:*:*:*:*:* Versions 40 Vulnerable ·Fedoraproject

Remediation

  • Fix · GHSA-7w75-32cg-r6g2 org.apache.tomcat:tomcat-coyote (Maven) Fixed in 11.0.0-M17 Advisory →
  • Fix · GHSA-7w75-32cg-r6g2 org.apache.tomcat:tomcat-coyote (Maven) Fixed in 10.1.19 Advisory →
  • Fix · GHSA-7w75-32cg-r6g2 org.apache.tomcat:tomcat-coyote (Maven) Fixed in 9.0.86 Advisory →
  • Fix · GHSA-7w75-32cg-r6g2 org.apache.tomcat:tomcat-coyote (Maven) Fixed in 8.5.99 Advisory →
  • Fix · GHSA-7w75-32cg-r6g2 org.apache.tomcat.embed:tomcat-embed-core (Maven) Fixed in 8.5.99 Advisory →
  • Fix · GHSA-7w75-32cg-r6g2 org.apache.tomcat.embed:tomcat-embed-core (Maven) Fixed in 9.0.86 Advisory →
  • Fix · GHSA-7w75-32cg-r6g2 org.apache.tomcat.embed:tomcat-embed-core (Maven) Fixed in 10.1.19 Advisory →
  • Fix · GHSA-7w75-32cg-r6g2 org.apache.tomcat.embed:tomcat-embed-core (Maven) Fixed in 11.0.0-M17 Advisory →

Red Hat 9 advisories

  • RHSA-2025:7497 Released 2025-05-13 · Red Hat rating Moderate
    tomcat security update
    • Red Hat Enterprise Linux AppStream (v. 10) tomcat-1:10.1.36-1.el10_0, tomcat-admin-webapps-1:10.1.36-1.el10_0, tomcat-docs-webapp-1:10.1.36-1.el10_0 +5
  • RHSA-2024:3814 Released 2024-06-11 · Red Hat rating Important
    tomcat security and bug fix update
    • Red Hat Enterprise Linux AppStream EUS (v.8.8) tomcat-1:9.0.87-1.el8_8.2, tomcat-admin-webapps-1:9.0.87-1.el8_8.2, tomcat-docs-webapp-1:9.0.87-1.el8_8.2 +5
  • RHSA-2024:3666 Released 2024-06-06 · Red Hat rating Important
    tomcat security and bug fix update
    • Red Hat Enterprise Linux AppStream (v. 8) tomcat-1:9.0.87-1.el8_10.1, tomcat-admin-webapps-1:9.0.87-1.el8_10.1, tomcat-docs-webapp-1:9.0.87-1.el8_10.1 +5
Show 6 more Red Hat advisories
  • RHSA-2024:3307 Released 2024-05-23 · Red Hat rating Important
    tomcat security and bug fix update
    • Red Hat Enterprise Linux AppStream (v. 9) tomcat-1:9.0.87-1.el9_4.1, tomcat-admin-webapps-1:9.0.87-1.el9_4.1, tomcat-docs-webapp-1:9.0.87-1.el9_4.1 +5
  • RHSA-2024:3308 Released 2024-05-23 · Red Hat rating Important
    tomcat security and bug fix update
    • Red Hat Enterprise Linux AppStream EUS (v.9.2) tomcat-1:9.0.87-1.el9_2.1, tomcat-admin-webapps-1:9.0.87-1.el9_2.1, tomcat-docs-webapp-1:9.0.87-1.el9_2.1 +5
  • RHSA-2024:1325 Released 2024-03-18 · Red Hat rating Important
    Red Hat JBoss Web Server 6.0.1 release and security update
    • JWS 6.0.1
  • RHSA-2024:1324 Released 2024-03-18 · Red Hat rating Important
    Red Hat JBoss Web Server 6.0.1 release and security update
    • Red Hat JBoss Web Server 6.0 for RHEL 8 jws6-tomcat-10.1.8-6.redhat_00013.1.el8jws, jws6-tomcat-admin-webapps-10.1.8-6.redhat_00013.1.el8jws, jws6-tomcat-docs-webapp-10.1.8-6.redhat_00013.1.el8jws +7
    • Red Hat JBoss Web Server 6.0 for RHEL 9 jws6-tomcat-10.1.8-6.redhat_00013.1.el9jws, jws6-tomcat-admin-webapps-10.1.8-6.redhat_00013.1.el9jws, jws6-tomcat-docs-webapp-10.1.8-6.redhat_00013.1.el9jws +7
  • RHSA-2024:1318 Released 2024-03-18 · Red Hat rating Important
    Red Hat JBoss Web Server 5.7.8 release and security update
    • Red Hat JBoss Web Server 5.7 for RHEL 7 Server jws5-tomcat-9.0.62-41.redhat_00020.1.el7jws, jws5-tomcat-admin-webapps-9.0.62-41.redhat_00020.1.el7jws, jws5-tomcat-docs-webapp-9.0.62-41.redhat_00020.1.el7jws +10
    • Red Hat JBoss Web Server 5.7 for RHEL 8 jws5-tomcat-9.0.62-41.redhat_00020.1.el8jws, jws5-tomcat-admin-webapps-9.0.62-41.redhat_00020.1.el8jws, jws5-tomcat-docs-webapp-9.0.62-41.redhat_00020.1.el8jws +8
    • Red Hat JBoss Web Server 5.7 for RHEL 9 jws5-tomcat-9.0.62-41.redhat_00020.1.el9jws, jws5-tomcat-admin-webapps-9.0.62-41.redhat_00020.1.el9jws, jws5-tomcat-docs-webapp-9.0.62-41.redhat_00020.1.el9jws +8
  • RHSA-2024:1319 Released 2024-03-18 · Red Hat rating Important
    Red Hat JBoss Web Server 5.7.8 release and security update
    • JWS 5.7.8

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 8AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux 9AffectedNo fix planned: Will not fix
JWS 5.7.8Fixed RHSA-2024:1319
JWS 6.0.1Fixed RHSA-2024:1325
Red Hat Enterprise Linux AppStream (v. 10)Fixed RHSA-2025:7497
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2024:3666
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2024:3307
Red Hat Enterprise Linux AppStream EUS (v.8.8)Fixed RHSA-2024:3814
Red Hat Enterprise Linux AppStream EUS (v.9.2)Fixed RHSA-2024:3308
Red Hat JBoss Web Server 5.7 for RHEL 7 ServerFixed RHSA-2024:1318
Red Hat JBoss Web Server 5.7 for RHEL 8Fixed RHSA-2024:1318
Red Hat JBoss Web Server 5.7 for RHEL 9Fixed RHSA-2024:1318
Red Hat JBoss Web Server 6.0 for RHEL 8Fixed RHSA-2024:1324
Red Hat JBoss Web Server 6.0 for RHEL 9Fixed RHSA-2024:1324
Not affected: 1 product
  • Red Hat Enterprise Linux 7

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-24549
  2. 2026-10-03 Alias added: GHSA-7w75-32cg-r6g2

References

Advisory 6

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