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.
Update org.apache.tomcat:tomcat-coyote to 11.0.15; org.apache.tomcat:tomcat-coyote to 10.1.50; org.apache.tomcat:tomcat-coyote to 9.0.113 if you use the affected versions. Test the change in a non-production environment first.
Local check
hol-guard supply-chain scanApache Tomcat - Security constraint bypass with HTTP/0.9 affects org.apache.tomcat:tomcat-coyote (maven), org.apache.tomcat:tomcat-coyote (maven), org.apache.tomcat:tomcat-coyote (maven). Severity is low. 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.
AI coding agents often install or upgrade packages automatically in maven. A low vulnerability in a dependency can be pulled into a project through a normal install or update without a human reviewing the change, expanding the blast radius from a single package to every agent workspace that depends on it.
| Package | Affected range | Fixed version |
|---|
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.
Update org.apache.tomcat:tomcat-coyote to 11.0.15; org.apache.tomcat:tomcat-coyote to 10.1.50; org.apache.tomcat:tomcat-coyote to 9.0.113 if you use the affected versions. Test the change in a non-production environment first.
Local check
hol-guard supply-chain scanApache Tomcat - Security constraint bypass with HTTP/0.9 affects org.apache.tomcat:tomcat-coyote (maven), org.apache.tomcat:tomcat-coyote (maven), org.apache.tomcat:tomcat-coyote (maven). Severity is low. 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.
AI coding agents often install or upgrade packages automatically in maven. A low vulnerability in a dependency can be pulled into a project through a normal install or update without a human reviewing the change, expanding the blast radius from a single package to every agent workspace that depends on it.
| Package | Affected range | Fixed version |
|---|
| org.apache.tomcat:tomcat-coyotemaven | >=11.0.0-M1,<11.0.15 | 11.0.15 |
|---|---|---|
| org.apache.tomcat:tomcat-coyotemaven | >=10.1.0-M1,<10.1.50 | 10.1.50 |
| org.apache.tomcat:tomcat-coyotemaven | <9.0.113 | 9.0.113 |
Fixed versions are reported by the source feed; confirm compatibility before updating.
Reported by GitHub Security Advisories (ghsa).
HOL Guard can help your team review package activity against supported protection paths.
Explore HOL Guard| org.apache.tomcat:tomcat-coyotemaven | >=11.0.0-M1,<11.0.15 | 11.0.15 |
|---|---|---|
| org.apache.tomcat:tomcat-coyotemaven | >=10.1.0-M1,<10.1.50 | 10.1.50 |
| org.apache.tomcat:tomcat-coyotemaven | <9.0.113 | 9.0.113 |
Fixed versions are reported by the source feed; confirm compatibility before updating.
Reported by GitHub Security Advisories (ghsa).
HOL Guard can help your team review package activity against supported protection paths.
Explore HOL Guard