CVE-2024-24549
A public proof of concept exists; no exploitation attested.
- Published2024-03-13
- Fixed in10.1.19 · 9.0.86 · 8.5.99
- WeaknessCWE-20
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
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.
Timeline
dates in UTC- 2024-03-1316:15CVE publishedNVD
- 2026-10-2319:23First public proof of conceptPoC-in-GitHub
- 2026-10-2319:23EPSS crossed 10 %FIRST EPSS
Observed activity
isMalicious corpus · updated 2026-10-23 18:48 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2024-24549?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2024-24549?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 10.1 | ≥ 10.1.0, < 10.1.19 | 10.1.19 | NVD |
| 9.0 | ≥ 9.0.0, < 9.0.86 | 9.0.86 | NVD |
| 8.5 | ≥ 8.5.0, < 8.5.99 | 8.5.99 | NVD |
| 11.0 | = 11.0.0 | no fix published | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 39.x | = 39 | no fix published | NVD |
| 40.x | = 40 | no fix published | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 10.0 | = 10.0 | no fix published | NVD |
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Fix
- Update Apache Tomcat to 10.1.19 · 9.0.86 · 8.5.99
Advisories and patches
- lists.apache.orgVendor Advisory
Detection
read 2026-10-23 19:24 UTC- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- 2 repositories, unverifiedAbdurahmon3236/CVE-2024-24549JFOZ1010/CVE-2024-24549 PoC-in-GitHub
Sources
- NVDCVE recordread 2026-10-23
- CISA-ADPSSVC decisionnone2024-03-15
- OpenCVESSVC decisionnone—
- CISA-ADPCVSS 3.17.52024-05-23
- CNAweakness (CWE)CWE-20read 2026-10-23
- FIRST EPSSEPSS score23.1 %read 2026-10-23
- PoC-in-GitHubproof of concept2read 2026-10-23
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Published
- 2024-03-13
- Last Modified
- 2026-06-17
- NVD status
- Modified
Frequently asked questions
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What is the CVSS score for CVE-2024-24549?
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