3.7

CVE-2026-24733

Apache Tomcat: Security constraint bypass with HTTP/0.9

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Apache ≫ Tomcat Version >= 9.0.1 < 9.0.113
Apache ≫ Tomcat Version >= 10.1.1 < 10.1.50
Apache ≫ Tomcat Version >= 11.0.1 < 11.0.15
Apache ≫ Tomcat Version 9.0.0 Update milestone1
Apache ≫ Tomcat Version 9.0.0 Update milestone10
Apache ≫ Tomcat Version 9.0.0 Update milestone11
Apache ≫ Tomcat Version 9.0.0 Update milestone12
Apache ≫ Tomcat Version 9.0.0 Update milestone13
Apache ≫ Tomcat Version 9.0.0 Update milestone14
Apache ≫ Tomcat Version 9.0.0 Update milestone15
Apache ≫ Tomcat Version 9.0.0 Update milestone16
Apache ≫ Tomcat Version 9.0.0 Update milestone17
Apache ≫ Tomcat Version 9.0.0 Update milestone18
Apache ≫ Tomcat Version 9.0.0 Update milestone19
Apache ≫ Tomcat Version 9.0.0 Update milestone2
Apache ≫ Tomcat Version 9.0.0 Update milestone20
Apache ≫ Tomcat Version 9.0.0 Update milestone21
Apache ≫ Tomcat Version 9.0.0 Update milestone22
Apache ≫ Tomcat Version 9.0.0 Update milestone23
Apache ≫ Tomcat Version 9.0.0 Update milestone24
Apache ≫ Tomcat Version 9.0.0 Update milestone25
Apache ≫ Tomcat Version 9.0.0 Update milestone26
Apache ≫ Tomcat Version 9.0.0 Update milestone27
Apache ≫ Tomcat Version 9.0.0 Update milestone3
Apache ≫ Tomcat Version 9.0.0 Update milestone4
Apache ≫ Tomcat Version 9.0.0 Update milestone5
Apache ≫ Tomcat Version 9.0.0 Update milestone6
Apache ≫ Tomcat Version 9.0.0 Update milestone7
Apache ≫ Tomcat Version 9.0.0 Update milestone8
Apache ≫ Tomcat Version 9.0.0 Update milestone9
Apache ≫ Tomcat Version 10.0.0 Update milestone1
Apache ≫ Tomcat Version 10.0.0 Update milestone10
Apache ≫ Tomcat Version 10.0.0 Update milestone2
Apache ≫ Tomcat Version 10.0.0 Update milestone3
Apache ≫ Tomcat Version 10.0.0 Update milestone4
Apache ≫ Tomcat Version 10.0.0 Update milestone5
Apache ≫ Tomcat Version 10.0.0 Update milestone6
Apache ≫ Tomcat Version 10.0.0 Update milestone7
Apache ≫ Tomcat Version 10.0.0 Update milestone8
Apache ≫ Tomcat Version 10.0.0 Update milestone9
Apache ≫ Tomcat Version 11.0.0 Update milestone1
Apache ≫ Tomcat Version 11.0.0 Update milestone10
Apache ≫ Tomcat Version 11.0.0 Update milestone11
Apache ≫ Tomcat Version 11.0.0 Update milestone12
Apache ≫ Tomcat Version 11.0.0 Update milestone13
Apache ≫ Tomcat Version 11.0.0 Update milestone14
Apache ≫ Tomcat Version 11.0.0 Update milestone15
Apache ≫ Tomcat Version 11.0.0 Update milestone16
Apache ≫ Tomcat Version 11.0.0 Update milestone17
Apache ≫ Tomcat Version 11.0.0 Update milestone18
Apache ≫ Tomcat Version 11.0.0 Update milestone19
Apache ≫ Tomcat Version 11.0.0 Update milestone2
Apache ≫ Tomcat Version 11.0.0 Update milestone20
Apache ≫ Tomcat Version 11.0.0 Update milestone21
Apache ≫ Tomcat Version 11.0.0 Update milestone22
Apache ≫ Tomcat Version 11.0.0 Update milestone23
Apache ≫ Tomcat Version 11.0.0 Update milestone24
Apache ≫ Tomcat Version 11.0.0 Update milestone25
Apache ≫ Tomcat Version 11.0.0 Update milestone26
Apache ≫ Tomcat Version 11.0.0 Update milestone3
Apache ≫ Tomcat Version 11.0.0 Update milestone4
Apache ≫ Tomcat Version 11.0.0 Update milestone5
Apache ≫ Tomcat Version 11.0.0 Update milestone6
Apache ≫ Tomcat Version 11.0.0 Update milestone7
Apache ≫ Tomcat Version 11.0.0 Update milestone8
Apache ≫ Tomcat Version 11.0.0 Update milestone9
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.49% 0.385
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 3.7 2.2 1.4
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
CISA-ADP 6.5 3.9 2.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
CWE-20 Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

https://lists.apache.org/thread/6xk3t65qpn1myp618krtfotbjn1qt90f
Vendor Advisory
Mailing List