CVE-2026-50229
Apache Tomcat: XSS in number guess example
6.1
MEDIUM
CVSS 3.1
EPSS 0.46%
Description
Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in the number guess example for Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0 through 11.0.22, from 10.1.0 through 10.1.55, from 9.0.0 through 9.0.118, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Other versions that have reached end of support may also be affected. Users are recommended to upgrade to version 11.0.23, 10.1.56 or 9.0.119, which fix the issue.
How to fix CVE-2026-50229
To remediate CVE-2026-50229, upgrade the affected package to a fixed version below.
- —upgrade to 9.0.101 or later
Is CVE-2026-50229 being exploited?
Low — EPSS is 0.5%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 9.0.101, >= 10.1.0, < 10.1.37, >= 11.0.0, < 11.0.5
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |