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Apache Tomcat contained a limited directory-traversal flaw, tracked as CVE-2015-5174, in RequestUtil.java. Improper validation in the ServletContext getResource(), getResourceAsStream(), and getResourcePaths() methods allowed a /.. path component during web-application resource lookups.
A remote authenticated user controlling a malicious web application could exploit the issue under a Java SecurityManager to enumerate the application deployment parent directory, typically $CATALINA_BASE/webapps, bypassing intended restrictions. Apache corrected the flaw in Tomcat 6.0.45, 7.0.65, and 8.0.27; Tomcat 9 is not affected.
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4 events from the most recent confirmed update back to the earliest known activity.
The CVE record for CVE-2015-5174 was updated.
Red Hat issued critical advisory RHSA-2016:1434 for JBoss EAP 6.4 on RHEL 7, providing EAP 6.4.9 to replace 6.4.8. The update remediated the Tomcat/JBoss Web directory-traversal flaw CVE-2015-5174 and the JGroups cluster authorization-bypass flaw CVE-2016-2141.
CVE-2015-5174 was published for the Apache Tomcat RequestUtil.java directory-traversal vulnerability affecting Tomcat 6 before 6.0.45, 7 before 7.0.65, and 8 before 8.0.27.
Apache disclosed CVE-2015-5174, a limited directory-traversal issue in ServletContext resource lookup path validation. The flaw could let a malicious web application running under a Java SecurityManager use "/.." to list its deployment parent directory; fixes were released in Tomcat 6.0.45, 7.0.65, and 8.0.27.
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Apache Tomcat disclosed **CVE-2015-5345**, a low-severity information-disclosure flaw that lets unauthenticated users determine whether protected directories or web-application roots exist. Tomcat processed redirects for directory URLs missing a trailing slash before applying security constraints, exposing the presence of resources that should not be discoverable. Apache corrected the request-processing order by moving redirect handling into `DefaultServlet`, ensuring security constraints and enforcement filters are evaluated before redirects occur. Organizations should upgrade to Tomcat 6.0.45, 7.0.67, 8.0.30, 9.0.0.M3, or later.
Aug 29, 2026
Apache Tomcat has remediated **CVE-2026-65182**, a critical improper authorization and access-control flaw (**CVSS 9.1**) that can let an unauthenticated remote attacker bypass configured security constraints. The issue arises when a constraint for a longer URL path is declared before a more restrictive constraint for a shorter subpath, causing Tomcat to apply access controls incorrectly. No public exploitation was known at the time of the notices. Affected releases include Tomcat 7.0.0–7.0.109, 8.5.0–8.5.100, 9.0.0.M1–9.0.120, 10.1.0-M1–10.1.57, and 11.0.0-M1–11.0.24, including deployments using embedded Tomcat libraries. Organizations should identify exposed instances and update to fixed releases—Tomcat 9.0.121, 10.1.58 or later, and 11.0.25 or later—while validating URL security-constraint ordering after remediation.
Sep 3, 2026
A directory-traversal flaw tracked as **CVE-2007-0450** affects Apache HTTP Server deployments that proxy requests to vulnerable Apache Tomcat instances through `mod_proxy`, `mod_rewrite`, or `mod_jk`. The inconsistency arises because Tomcat treats forward slashes, backslashes, and URL-encoded backslashes as path separators differently from Apache HTTP Server. A remote attacker can send crafted `..` path sequences using these alternate separators to bypass path restrictions and read arbitrary files accessible to the Tomcat process. Affected versions include Tomcat 5.x before 5.5.22 and Tomcat 6.x before 6.0.10; organizations using the affected proxy configurations should upgrade Tomcat and review exposed applications for traversal attempts.
Aug 29, 2026