CVE-2026-24733 (GCVE-0-2026-24733)

Vulnerability from cvelistv5 – Published: 2026-02-17 18:50 – Updated: 2026-02-17 18:50
VLAI?
Title
Apache Tomcat: Security constraint bypass with HTTP/0.9
Summary
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 ?
No CVSS data available.
CWE
  • CWE-20 - Improper Input Validation
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache Tomcat Affected: 11.0.0-M1 , ≤ 11.0.14 (semver)
Affected: 10.1.0-M1 , ≤ 10.1.49 (semver)
Affected: 9.0.0.M1 , ≤ 9.0.112 (semver)
Affected: 0 , ≤ 8.5.100 (semver)
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