CVE-2026-41293
Critical
Description
Improper Input Validation vulnerability in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117, from 10.0.0-M1 through 10.0.27. Older, end of support versions may also be affected. Users are recommended to upgrade to version [FIXED_VERSION], which fixes the issue.
SeverityCritical
CVSS9.8
Exploit probability—
Product
Apache Tomcat
PublishedMay 12, 2026
First seenMay 12, 2026
Weakness typeCWE-20Improper input validation
How to fix
Update
- apache tomcat9.0.118, 10.1.55, 11.0.22 or later
- org.apache.tomcat.embed:tomcat-embed-core9.0.118, 10.1.55, 11.0.22 or later
- org.apache.tomcat:tomcat9.0.118, 10.1.55, 11.0.22 or later
- org.apache.tomcat:tomcat-coyote9.0.118, 10.1.55, 11.0.22 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| apache tomcat | 8.5.0 ≤ v ≤ 8.5.100, 9.0.0 ≤ v < 9.0.118, 10.0.0 ≤ v ≤ 10.0.27, 10.1.0 ≤ v < 10.1.55, 11.0.0 ≤ v < 11.0.22 | 9.0.118, 10.1.55, 11.0.22 |
| org.apache.tomcat.embed:tomcat-embed-coreMaven | 8.5.0 ≤ v < 9.0.118, 10.1.0-M1 ≤ v < 10.1.55, 11.0.0-M1 ≤ v < 11.0.22 | 9.0.118, 10.1.55, 11.0.22 |
| org.apache.tomcat:tomcatMaven | 8.5.0 ≤ v < 9.0.118, 10.1.0-M1 ≤ v < 10.1.55, 11.0.0-M1 ≤ v < 11.0.22 | 9.0.118, 10.1.55, 11.0.22 |
| org.apache.tomcat:tomcat-coyoteMaven | 8.5.0 ≤ v < 9.0.118, 10.1.0-M1 ≤ v < 10.1.55, 11.0.0-M1 ≤ v < 11.0.22 | 9.0.118, 10.1.55, 11.0.22 |
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