CVE-2026-59083 — Apache Tomcat: Incorrect URL decoding in RewriteValve may allow security control bypass

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
Apache Software Foundation / Apache Tomcat	affected 11.0.0-M1 through 11.0.23; affected 10.1.0-M1 through 10.1.56; affected 9.0.0.M1 through 9.0.119; affected 8.5.0 through 8.5.100; unaffected 0 before 8.0.0

CWE

CWE-177

References

https://lists.apache.org/thread/3g63zos2gkjo5vgnrk8kxmosv47w6wbq

ADP enrichment

CVE

No English description supplied.

http://www.openwall.com/lists/oss-security/2026/07/14/7

CISA-ADP

No English description supplied.

No references supplied.