CVE-2026-32990
Received Received - Intake
Improper Input Validation in Apache Tomcat Allows Potential Exploits

Publication date: 2026-04-09

Last updated on: 2026-04-14

Assigner: Apache Software Foundation

Description
Improper Input Validation vulnerability in Apache Tomcat due to an incomplete fix of CVE-2025-66614. This issue affects Apache Tomcat: from 11.0.15 through 11.0.19, from 10.1.50 through 10.1.52, from 9.0.113 through 9.0.115. Users are recommended to upgrade to version 11.0.20, 10.1.53 or 9.0.116, which fix the issue.
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Meta Information
Published
2026-04-09
Last Modified
2026-04-14
Generated
2026-06-16
AI Q&A
2026-04-09
EPSS Evaluated
2026-06-15
NVD
CVE-2026-32990
EUVD
EUVD-2026-21018
Affected Vendors & Products
Showing 3 associated CPEs
Vendor Product Version / Range
apache tomcat From 10.1.50 (inc) to 10.1.53 (exc)
apache tomcat From 11.0.15 (inc) to 11.0.20 (exc)
apache tomcat From 9.0.113 (inc) to 9.0.116 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-20 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.
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Executive Summary

This vulnerability is an Improper Input Validation issue in Apache Tomcat. It arises because a previous fix for CVE-2025-66614 was incomplete, leaving the software still vulnerable. The affected versions are Apache Tomcat from 11.0.15 through 11.0.19, 10.1.50 through 10.1.52, and 9.0.113 through 9.0.115.

Improper Input Validation means that the software does not correctly check or sanitize input data, which can lead to unexpected behavior or security issues.

Mitigation Strategies

Users are recommended to upgrade Apache Tomcat to versions 11.0.20, 10.1.53, or 9.0.116, which fix the issue caused by improper input validation.

Impact Analysis

This vulnerability is an Improper Input Validation issue in Apache Tomcat caused by an incomplete fix of a previous vulnerability (CVE-2025-66614). It affects multiple versions of Apache Tomcat (from 11.0.15 through 11.0.19, 10.1.50 through 10.1.52, and 9.0.113 through 9.0.115).

If exploited, this vulnerability could potentially allow attackers to bypass input validation controls, which may lead to unexpected behavior or security issues in applications running on affected Tomcat versions.

Users are recommended to upgrade to fixed versions (11.0.20, 10.1.53, or 9.0.116) to mitigate this risk.

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