CVSS 3.1
3.7 lowCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:NCVE-2026-24733
Low (3.7) in apache tomcat. EPSS 0.6% chance of exploitation in the next 30 days. Fixed in org.apache.tomcat:tomcat-coyote 10.1.50, 11.0.15, 9.0.113.
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.
Severity
- EPSS
- 0.6% chance of exploitation in the next 30 days; higher than 46% of CVEs (scores of 2026-10-31)
- CWE
- CWE-20
- Published
- Modified
- Record from
- the NVD, synced
Affected
- apache:tomcat
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-qq5r-98hh-rxc9 | Maven | org.apache.tomcat:tomcat-coyote | >=11.0.0-M1 <11.0.15 | 11.0.15 |
| GHSA-qq5r-98hh-rxc9 | Maven | org.apache.tomcat:tomcat-coyote | >=10.1.0-M1 <10.1.50 | 10.1.50 |
| GHSA-qq5r-98hh-rxc9 | Maven | org.apache.tomcat:tomcat-coyote | <9.0.113 | 9.0.113 |