`CVE-2024-24549` Apache Tomcat

Affected software	Apache Tomcat
Severity	7.5 High CVSS 3.1
Fixed in	`11.0.0-M17`, `10.1.19`, `9.0.86`, `8.5.99`
Weakness	Improper input validation (CWE-20)
Published	13 Mar 2024
Updated	17 Jun 2026

Description

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.

Exploitation status

Proof of concept only

A proof of concept exists, but no reviewed exploit catalogue lists this CVE.

CISA KEV not listed
VulnCheck KEV not listed
CISA Vulnrichment exploitation: none
Indexed PoC 2 indexed Published artifacts you can open, in GitHub PoC; first seen 2024-08-02.
EPSS 23% chance in 30 days A model's forecast, not a report of exploitation. Higher than 98% of all scored CVEs.

Index	Artifact	Stars	First seen
GitHub PoC	Abdurahmon3236/CVE-2024-24549	9	2024-08-02
GitHub PoC	Proof of concept of the CVE-2024-24549, Exploit in Python.	6	2024-12-09

Waratek protection

Mitigation candidate

A kind of vulnerability Waratek's rules address, with exploit code published or exploitation reported. No rule exists and none is planned yet. The decision below says what we found to build a rule from.

Protection none
Action unverified
Review automated Inferred
Record active

Decided by	The affected package being open source on Maven, so the fix can be read
Finding	This CVE affects an open-source Java library published on Maven Central (Maven packages: org.apache.tomcat:tomcat-coyote, org.apache.tomcat.embed:tomcat-embed-core), so it is squarely in ARMR's territory and the source needed to understand the defect is public. That makes it a candidate for an ARMR patch rule. No rule exists and none is scheduled: the diff between the affected and fixed versions has not been read, and a closer look may find no hook point ARMR can act on.

Decided by

The affected package being open source on Maven, so the fix can be read

Finding

This CVE affects an open-source Java library published on Maven Central (Maven packages: org.apache.tomcat:tomcat-coyote, org.apache.tomcat.embed:tomcat-embed-core), so it is squarely in ARMR's territory and the source needed to understand the defect is public. That makes it a candidate for an ARMR patch rule. No rule exists and none is scheduled: the diff between the affected and fixed versions has not been read, and a closer look may find no hook point ARMR can act on.

Affected software and releases

Oracle advisories

Advisory	Type	Quarter	Products Oracle names in its risk matrix
Oracle Critical Patch Update April 2025 ↗	CPU	2025-Q2	Oracle Autonomous Health Framework / Trace File Analyzer (Apache Tomcat) (23.8.0-23.11.0, 24.1.0-24.11.0, 25.1.0,25.2.0)
Oracle Critical Patch Update January 2025 ↗	CPU	2025-Q1	Oracle Supply Chain / Document Management (Apache Tomcat) (6.2.1)
Oracle Critical Patch Update October 2024 ↗	CPU	2024-Q4	Oracle Communications Applications / Core (Apache Tomcat) (5.5.0-5.5.22, 6.0.0-6.0.4) Oracle Fusion Middleware / MFT Runtime Server (Apache Tomcat) (12.2.1.4.0) Oracle Siebel CRM / EAI (Apache Tomcat) (24.7 and prior) Oracle Supply Chain / File Manager (Apache Tomcat) (9.3.6)
Oracle Critical Patch Update July 2024 ↗	CPU	2024-Q3	Oracle Commerce / Workbench, Platform Services, Content Acquisition System (Apache Tomcat) (11.3.2) Oracle Communications / Automated Test Suite (Apache Tomcat) (24.2.0) Oracle Communications / Security (Apache Tomcat) (12.11.3) Oracle Communications / Security (Apache Tomcat) (46.6.4, 46.6.5) Oracle Financial Services Applications / Installer (Apache Tomcat) (8.1.2.5, 8.1.2.6) Oracle MySQL / Monitoring: General (Apache Tomcat) (8.0.38 and prior)

Advisory

Type

Quarter

Products Oracle names in its risk matrix

Oracle Critical Patch Update April 2025 ↗

CPU

2025-Q2

Oracle Autonomous Health Framework / Trace File Analyzer (Apache Tomcat) (23.8.0-23.11.0, 24.1.0-24.11.0, 25.1.0,25.2.0)

Oracle Critical Patch Update January 2025 ↗

CPU

2025-Q1

Oracle Supply Chain / Document Management (Apache Tomcat) (6.2.1)

Oracle Critical Patch Update October 2024 ↗

CPU

2024-Q4

Oracle Communications Applications / Core (Apache Tomcat) (5.5.0-5.5.22, 6.0.0-6.0.4)
Oracle Fusion Middleware / MFT Runtime Server (Apache Tomcat) (12.2.1.4.0)
Oracle Siebel CRM / EAI (Apache Tomcat) (24.7 and prior)
Oracle Supply Chain / File Manager (Apache Tomcat) (9.3.6)

Oracle Critical Patch Update July 2024 ↗

CPU

2024-Q3

Oracle Commerce / Workbench, Platform Services, Content Acquisition System (Apache Tomcat) (11.3.2)
Oracle Communications / Automated Test Suite (Apache Tomcat) (24.2.0)
Oracle Communications / Security (Apache Tomcat) (12.11.3)
Oracle Communications / Security (Apache Tomcat) (46.6.4, 46.6.5)
Oracle Financial Services Applications / Installer (Apache Tomcat) (8.1.2.5, 8.1.2.6)
Oracle MySQL / Monitoring: General (Apache Tomcat) (8.0.38 and prior)

Oracle components and versions

Family	Component	Versions, as Oracle lists them	Read as
Oracle Autonomous Health Framework	Trace File Analyzer (Apache Tomcat)	23.8.0-23.11.0, 24.1.0-24.11.0, 25.1.0,25.2.0	25.1.0 · 25.2.0
Oracle Commerce	Workbench, Platform Services, Content Acquisition System (Apache Tomcat)	11.3.2	11.3.2
Oracle Communications	Automated Test Suite (Apache Tomcat)	24.2.0	24.2.0
Oracle Communications	Security (Apache Tomcat)	12.11.3	12.11.3 · 46.6.4 · 46.6.5
Oracle Communications Applications	Core (Apache Tomcat)	5.5.0-5.5.22, 6.0.0-6.0.4
Oracle Financial Services Applications	Installer (Apache Tomcat)	8.1.2.5, 8.1.2.6	8.1.2.5 · 8.1.2.6
Oracle Fusion Middleware	MFT Runtime Server (Apache Tomcat)	12.2.1.4.0	12.2.1.4.0
Oracle MySQL	Monitoring: General (Apache Tomcat)	8.0.38 and prior
Oracle Siebel CRM	EAI (Apache Tomcat)	24.7 and prior
Oracle Supply Chain	Document Management (Apache Tomcat)	6.2.1	6.2.1
Oracle Supply Chain	File Manager (Apache Tomcat)	9.3.6	9.3.6

Family

Component

Versions, as Oracle lists them

Read as

Oracle Autonomous Health Framework

Trace File Analyzer (Apache Tomcat)

23.8.0-23.11.0, 24.1.0-24.11.0, 25.1.0,25.2.0

25.1.0 · 25.2.0

Oracle Commerce

Workbench, Platform Services, Content Acquisition System (Apache Tomcat)

11.3.2

Oracle Communications

Automated Test Suite (Apache Tomcat)

24.2.0

Oracle Communications

Security (Apache Tomcat)

12.11.3

12.11.3 · 46.6.4 · 46.6.5

Oracle Communications Applications

Core (Apache Tomcat)

5.5.0-5.5.22, 6.0.0-6.0.4

Oracle Financial Services Applications

Installer (Apache Tomcat)

8.1.2.5, 8.1.2.6

8.1.2.5 · 8.1.2.6

Oracle Fusion Middleware

MFT Runtime Server (Apache Tomcat)

12.2.1.4.0

Oracle MySQL

Monitoring: General (Apache Tomcat)

8.0.38 and prior

Oracle Siebel CRM

EAI (Apache Tomcat)

24.7 and prior

Oracle Supply Chain

Document Management (Apache Tomcat)

6.2.1

Oracle Supply Chain

File Manager (Apache Tomcat)

9.3.6

Maven packages

Affected and fixed versions, from OSV.dev

Package Introduced Fixed Last affected

org.apache.tomcat:tomcat-coyote 11.0.0-M1 11.0.0-M17 unbounded

org.apache.tomcat:tomcat-coyote 10.1.0-M1 10.1.19 unbounded

org.apache.tomcat:tomcat-coyote 9.0.0-M1 9.0.86 unbounded

org.apache.tomcat:tomcat-coyote 8.5.0 8.5.99 unbounded

org.apache.tomcat.embed:tomcat-embed-core 8.5.0 8.5.99 unbounded

org.apache.tomcat.embed:tomcat-embed-core 9.0.0-M1 9.0.86 unbounded

org.apache.tomcat.embed:tomcat-embed-core 10.1.0-M1 10.1.19 unbounded

org.apache.tomcat.embed:tomcat-embed-core 11.0.0-M1 11.0.0-M17 unbounded

Package	Introduced	Fixed	Last affected
`org.apache.tomcat:tomcat-coyote`	11.0.0-M1	`11.0.0-M17`	unbounded
`org.apache.tomcat:tomcat-coyote`	10.1.0-M1	`10.1.19`	unbounded
`org.apache.tomcat:tomcat-coyote`	9.0.0-M1	`9.0.86`	unbounded
`org.apache.tomcat:tomcat-coyote`	8.5.0	`8.5.99`	unbounded
`org.apache.tomcat.embed:tomcat-embed-core`	8.5.0	`8.5.99`	unbounded
`org.apache.tomcat.embed:tomcat-embed-core`	9.0.0-M1	`9.0.86`	unbounded
`org.apache.tomcat.embed:tomcat-embed-core`	10.1.0-M1	`10.1.19`	unbounded
`org.apache.tomcat.embed:tomcat-embed-core`	11.0.0-M1	`11.0.0-M17`	unbounded

Products and versions

5 products, 30 version entries

Source	Vendor	Product	Scheme	Affected versions
nvd	apache	tomcat	generic	≥ 8.5.0 and ＜ 8.5.99 · ≥ 9.0.0 and ＜ 9.0.86 · ≥ 10.1.0 and ＜ 10.1.19 · 11.0.0:milestone1 · 11.0.0:milestone10 · 11.0.0:milestone11 · 11.0.0:milestone12 · 11.0.0:milestone13 · 11.0.0:milestone14 · 11.0.0:milestone15 · 11.0.0:milestone16 · 11.0.0:milestone2 · 11.0.0:milestone3 · 11.0.0:milestone4 · 11.0.0:milestone5 · 11.0.0:milestone6 · 11.0.0:milestone7 · 11.0.0:milestone8 · 11.0.0:milestone9
nvd	debian	debian linux	generic	10.0
nvd	fedoraproject	fedora	generic	39 · 40
osv	org.apache.tomcat	tomcat-coyote	generic	≥ 8.5.0 and ＜ 8.5.99 · ≥ 9.0.0 and ＜ 9.0.86 · ≥ 10.1.0 and ＜ 10.1.19 · ≥ 11.0.0 and ＜ 11.0.0
osv	org.apache.tomcat.embed	tomcat-embed-core	generic	≥ 8.5.0 and ＜ 8.5.99 · ≥ 9.0.0 and ＜ 9.0.86 · ≥ 10.1.0 and ＜ 10.1.19 · ≥ 11.0.0 and ＜ 11.0.0

Source

Vendor

Product

Scheme

Affected versions

nvd

apache

tomcat

generic

≥ 8.5.0 and ＜ 8.5.99 · ≥ 9.0.0 and ＜ 9.0.86 · ≥ 10.1.0 and ＜ 10.1.19 · 11.0.0:milestone1 · 11.0.0:milestone10 · 11.0.0:milestone11 · 11.0.0:milestone12 · 11.0.0:milestone13 · 11.0.0:milestone14 · 11.0.0:milestone15 · 11.0.0:milestone16 · 11.0.0:milestone2 · 11.0.0:milestone3 · 11.0.0:milestone4 · 11.0.0:milestone5 · 11.0.0:milestone6 · 11.0.0:milestone7 · 11.0.0:milestone8 · 11.0.0:milestone9

nvd

debian

debian linux

generic

10.0

nvd

fedoraproject

fedora

generic

39 · 40

osv

org.apache.tomcat

tomcat-coyote

generic

≥ 8.5.0 and ＜ 8.5.99 · ≥ 9.0.0 and ＜ 9.0.86 · ≥ 10.1.0 and ＜ 10.1.19 · ≥ 11.0.0 and ＜ 11.0.0

osv

org.apache.tomcat.embed

tomcat-embed-core

generic

≥ 8.5.0 and ＜ 8.5.99 · ≥ 9.0.0 and ＜ 9.0.86 · ≥ 10.1.0 and ＜ 10.1.19 · ≥ 11.0.0 and ＜ 11.0.0

References

URL	Tags
https://github.com/apache/tomcat/commit/0cac540a882220231ba7a82330483cbd5f6b1f96	WEB
https://github.com/apache/tomcat/commit/810f49d5ff6d64b704af85d5b8d0aab9ec3c83f5	WEB
https://github.com/apache/tomcat/commit/8e03be9f2698f2da9027d40b9e9c0c9429b74dc0	WEB
https://github.com/apache/tomcat/commit/d07c82194edb69d99b438828fe2cbfadbb207843	WEB
https://github.com/apache/tomcat	PACKAGE
https://lists.apache.org/thread/4c50rmomhbbsdgfjsgwlb51xdwfjdcvg	WEB
https://lists.debian.org/debian-lts-announce/2024/04/msg00001.html	WEB
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3UWIS5MMGYDZBLJYT674ZI5AWFHDZ46B	WEB
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/736G4GPZWS2DSQO5WKXO3G6OMZKFEK55	WEB
https://security.netapp.com/advisory/ntap-20240402-0002	WEB

URL

Timeline

Published	2024-03-13	By the CVE Program.
NVD record modified	2026-06-17	NVD's own last-modified date for this record.

Published

2024-03-13

By the CVE Program.

NVD record modified

2026-06-17

NVD's own last-modified date for this record.

How VRT decided (17 of 24 rules ran)

17 of 24 rules ran. The rest didn't run because an earlier rule had already settled the CVE.

# Rule Outcome Status Detail

identity: Does this identifier describe a vulnerability at all? the first rule that matches decides

1 rejected no match CVE Program withdrawal of this identifier

scope: Is it a vulnerability Waratek protects? the first rule that matches decides

2 armr-patch-file no match An ARMR patch file on disk for this CVE

3 armr-secure-rule-file no match An ARMR security-rule template on disk for this CVE

4 manual-classification no match A researcher's recorded decision for this specific CVE

5 manual classification no match Manual classification of this CVE in the legacy dataset

6 non-java-upstream no match A root cause in non-Java code: an OS kernel, a C library, or a bundled runtime

7 oracle-component no match The defect being in a component of a tracked product the agent does not reach: JavaFX, the Java SE installer, the JInitiator browser plug-in, the native WebLogic proxy plug-in, or a native part of Oracle Application Server or Collaboration Suite (HTTP Server, Web Cache, Internet Directory, mail and calendar servers). Oracle gives these no CPE of their own and names them only in the description.

8 java-client-side no match Oracle's own risk-matrix note saying the CVE is reached only through untrusted code in the Java sandbox (applets, Web Start) or only through a client installation of Java, so a server running its own trusted code is not exposed

9 osv-maven matched In scope Maven packages: org.apache.tomcat:tomcat-coyote, org.apache.tomcat.embed:tomcat-embed-core

10 cna-maven-package not reached An affected Maven artifact named by the CNA itself

11 known-cpe-product not reached An NVD CPE naming a product ARMR tracks

12 cna-cpe-product not reached A CPE the CNA published naming a tracked product. Oracle publishes these on advisory day, months before NVD.

13 oracle-advisory-family not reached A tracked product family named in Oracle's own risk matrix. CPE cannot carry a suite name, only a module.

14 cna-named-product not reached A tracked product named in words by the CVE's own CNA, on a record with no CPE yet. Apache and Eclipse publish these on advisory day, before NVD adds CPE data.

15 non-deployable-product not reached The only affected product being a sealed appliance image, where Java runs but no -javaagent can be attached

16 unmatched-product not reached No tracked product matched above, and none present at all

disposition: What do we do about one that is? every rule runs

17 patch-hint no match A reference pointing at the upstream fix: a commit, a PR, a Red Hat bug

18 open-source-maven decided it matched Mitigation candidate Open-source Maven artifact indexed by OSV (Maven packages: org.apache.tomcat:tomcat-coyote, org.apache.tomcat.embed:tomcat-embed-core). The source is public, which makes an ARMR patch rule a candidate; nothing here establishes that one can be written.

19 poc-derivable skipped An indexed exploit clearing the evidence bar to reverse-engineer, where there is no source to read

20 no-exploit skipped Nothing to build a rule from yet: no published exploit, no CISA record of exploitation and no source-level change to read

21 secure-rule-match no match A vulnerability class already blocked by an ARMR security rule

22 exploited-no-fix-or-poc skipped Somebody exploiting this CVE (a CISA or VulnCheck KEV listing, or a CISA verdict of active exploitation), with no fix, source code or PoC to build a rule from

23 below-action-threshold no match Severity is HIGH — only MEDIUM/LOW are deprioritized

24 no-exploit-published no match A CISA or VulnCheck KEV listing, a CISA verdict of active exploitation, a reviewed exploit catalogue, or a GitHub PoC with 5 or more stars carries this CVE — exploit code is in use or published, so it stays a candidate

Products the scope rules checked

The products this CVE's record names, and whether VRT tracks each one. The scope rules decided on these.

Vendor Product Tracked CPE Source

apache tomcat tracked cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* yaml

debian debian_linux not tracked cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

fedoraproject fedora not tracked cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*

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