CVE-2026-24733
Detail
Modified After Enrichment
This CVE record has been updated after NVD enrichment efforts were completed. Enrichment data supplied by the NVD may require amendment due to these changes.
Description
Improper Input Validation vulnerability in Apache Tomcat.
Tomcat did not limit HTTP/0.9 requests to the GET method. If a security
constraint was configured to allow HEAD requests to a URI but deny GET
requests, the user could bypass that constraint on GET requests by
sending a (specification invalid) HEAD request using HTTP/0.9.
This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.14, from 10.1.0-M1 through 10.1.49, from 9.0.0.M1 through 9.0.112.
Older, EOL versions are also affected.
Users are recommended to upgrade to version 11.0.15 or later, 10.1.50 or later or 9.0.113 or later, which fixes the issue.
Metrics
NVD enrichment efforts reference publicly available information to associate
vector strings. CVSS information contributed by other sources is also
displayed.
CVSS 4.0 Severity and Vector Strings:
NVD assessment
not yet provided.
CVSS 3.x Severity and Vector Strings:
Vector:
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
CVSS 2.0 Severity and Vector Strings:
Base
Score:
NVD assessment
not yet provided.
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Change History
5 change records found show changes
CVE Modified by CISA-ADP
6/17/2026 6:23:30 AM
| Action |
Type |
Old Value |
New Value |
| Added |
SSVC |
{"timestamp":"2026-02-21T21:16:58.680222Z","id":"CVE-2026-24733","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}
|
CVE Modified by Apache Software Foundation
6/17/2026 6:23:30 AM
| Action |
Type |
Old Value |
New Value |
| Added |
Affected |
[{"vendor":"Apache Software Foundation","product":"Apache Tomcat","defaultStatus":"unaffected","versions":[{"version":"11.0.0-M1","lessThanOrEqual":"11.0.14","versionType":"semver","status":"affected"},{"version":"10.1.0-M1","lessThanOrEqual":"10.1.49","versionType":"semver","status":"affected"},{"version":"9.0.0.M1","lessThanOrEqual":"9.0.112","versionType":"semver","status":"affected"},{"version":"0","lessThanOrEqual":"8.5.100","versionType":"semver","status":"affected"}]}]
|
CVE Modified by CISA-ADP
3/11/2026 12:16:29 PM
| Action |
Type |
Old Value |
New Value |
| Added |
CVSS V3.1 |
AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
|
Initial Analysis by NIST
3/11/2026 11:18:35 AM
| Action |
Type |
Old Value |
New Value |
| Added |
CVSS V3.1 |
AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
|
| Added |
CWE |
NVD-CWE-noinfo
|
| Added |
CPE Configuration |
Record truncated, showing 2048 of 4435 characters.
View Entire Change Record
OR
*cpe:2.3:a:apache:tomcat:9.0.0:milestone1:*:*:*:*:*:*
*cpe:2.3:a:apache:tomcat:9.0.0:milestone10:*:*:*:*:*:*
*cpe:2.3:a:apache:tomcat:9.0.0:milestone11:*:*:*:*:*:*
*cpe:2.3:a:apache:tomcat:9.0.0:milestone12:*:*:*:*:*:*
*cpe:2.3:a:apache:tomcat:9.0.0:milestone13:*:*:*:*:*:*
*cpe:2.3:a:apache:tomcat:9.0.0:milestone14:*:*:*:*:*:*
*cpe:2.3:a:apache:tomcat:9.0.0:milestone15:*:*:*:*:*:*
*cpe:2.3:a:apache:tomcat:9.0.0:milestone16:*:*:*:*:*:*
*cpe:2.3:a:apache:tomcat:9.0.0:milestone17:*:*:*:*:*:*
*cpe:2.3:a:apache:tomcat:9.0.0:milestone18:*:*:*:*:*:*
*cpe:2.3:a:apache:tomcat:9.0.0:milestone19:*:*:*:*:*:*
*cpe:2.3:a:apache:tomcat:9.0.0:milestone2:*:*:*:*:*:*
*cpe:2.3:a:apache:tomcat:9.0.0:milestone20:*:*:*:*:*:*
*cpe:2.3:a:apache:tomcat:9.0.0:milestone21:*:*:*:*:*:*
*cpe:2.3:a:apache:tomcat:9.0.0:milestone22:*:*:*:*:*:*
*cpe:2.3:a:apache:tomcat:9.0.0:milestone23:*:*:*:*:*:*
*cpe:2.3:a:apache:tomcat:9.0.0:milestone24:*:*:*:*:*:*
*cpe:2.3:a:apache:tomcat:9.0.0:milestone25:*:*:*:*:*:*
*cpe:2.3:a:apache:tomcat:9.0.0:milestone26:*:*:*:*:*:*
*cpe:2.3:a:apache:tomcat:9.0.0:milestone27:*:*:*:*:*:*
*cpe:2.3:a:apache:tomcat:9.0.0:milestone3:*:*:*:*:*:*
*cpe:2.3:a:apache:tomcat:9.0.0:milestone4:*:*:*:*:*:*
*cpe:2.3:a:apache:tomcat:9.0.0:milestone5:*:*:*:*:*:*
*cpe:2.3:a:apache:tomcat:9.0.0:milestone6:*:*:*:*:*:*
*cpe:2.3:a:apache:tomcat:9.0.0:milestone7:*:*:*:*:*:*
*cpe:2.3:a:apache:tomcat:9.0.0:milestone8:*:*:*:*:*:*
*cpe:2.3:a:apache:tomcat:9.0.0:milestone9:*:*:*:*:*:*
*cpe:2.3:a:apache:tomcat:10.0.0:milestone3:*:*:*:*:*:*
*cpe:2.3:a:apache:tomcat:10.0.0:milestone4:*:*:*:*:*:*
*cpe:2.3:a:apache:tomcat:10.0.0:milestone2:*:*:*:*:*:*
*cpe:2.3:a:apache:tomcat:10.0.0:milestone1:*:*:*:*:*:*
*cpe:2.3:a:apache:tomcat:10.0
|
| Added |
Reference Type |
Apache Software Foundation: https://lists.apache.org/thread/6xk3t65qpn1myp618krtfotbjn1qt90f Types: Mailing List, Vendor Advisory
|
New CVE Received from Apache Software Foundation
2/17/2026 2:21:56 PM
| Action |
Type |
Old Value |
New Value |
| Added |
Description |
Improper Input Validation vulnerability in Apache Tomcat.
Tomcat did not limit HTTP/0.9 requests to the GET method. If a security
constraint was configured to allow HEAD requests to a URI but deny GET
requests, the user could bypass that constraint on GET requests by
sending a (specification invalid) HEAD request using HTTP/0.9.
This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.14, from 10.1.0-M1 through 10.1.49, from 9.0.0.M1 through 9.0.112.
Older, EOL versions are also affected.
Users are recommended to upgrade to version 11.0.15 or later, 10.1.50 or later or 9.0.113 or later, which fixes the issue.
|
| Added |
CWE |
CWE-20
|
| Added |
Reference |
https://lists.apache.org/thread/6xk3t65qpn1myp618krtfotbjn1qt90f
|
Quick Info
CVE Dictionary Entry: CVE-2026-24733 NVD
Published Date: 02/17/2026 NVD
Last Modified: 06/17/2026
Source: Apache Software Foundation
|
