CVE-2026-59083
Apache Tomcat: Incorrect URL decoding in RewriteValve may allow security control bypass
CVSS Score
9.1
EPSS Score
0.0%
EPSS Percentile
0th
Improper Handling of URL Encoding (Hex Encoding) vulnerability in Apache Tomcat's rewrite valve allowed security constraint bypass for some configurations. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.23, from 10.1.0-M1 through 10.1.56, from 9.0.0.M1 through 9.0.119, from 8.5.0 through 8.5.100. Other versions that have reached end of support may also be affected. Users are recommended to upgrade to version 11.0.24, 10.1.57 or 9.0.120, which fix the issue.
| CWE | CWE-177 |
| Vendor | apache software foundation |
| Product | apache tomcat |
| Published | Jul 14, 2026 |
| Last Updated | Jul 14, 2026 |
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Affected Versions
Apache Software Foundation / Apache Tomcat
11.0.0-M1 ≤ 11.0.23 10.1.0-M1 ≤ 10.1.56 9.0.0.M1 ≤ 9.0.119 8.5.0 ≤ 8.5.100