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CVE PROGRAM SOURCE RECORD9.1 Critical

CVE-2026-59083

Apache Tomcat: Incorrect URL decoding in RewriteValve may allow security control bypass

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Status
Published
Published
Updated
Assigning organization
apache

Description

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 products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Apache Software Foundation Apache Tomcat

Default version status: unaffected

  • 11.0.0-M1 to ≤ 11.0.23affected
  • 10.1.0-M1 to ≤ 10.1.56affected
  • 9.0.0.M1 to ≤ 9.0.119affected
  • 8.5.0 to ≤ 8.5.100affected
  • 0 to < 8.0.0unaffected

References