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

Tillverkarens beskrivning (engelska)

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.

Referensdata

Tillverkare

Apache Software Foundation

Berörda produkter

• Apache Tomcat

CVSS 3.1

9.1 (CRITICAL)

Vektor

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Typ av svaghet

CWE-177: Improper Handling of URL Encoding (Hex Encoding)

Publicerad

14 juli 2026

Officiella källor

• CVE.org
• NVD
• Tillverkarens advisory

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