Apache Tomcat: Directory traversal via rewrite with possible RCE if PUT is enabled

Summary

CVECVE-2025-55752
StatePUBLISHED
Assignerapache
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-10-27 18:15:42 UTC
Updated2026-05-12 13:17:22 UTC
DescriptionRelative Path Traversal vulnerability in Apache Tomcat. The fix for bug 60013 introduced a regression where the rewritten URL was normalized before it was decoded. This introduced the possibility that, for rewrite rules that rewrite query parameters to the URL, an attacker could manipulate the request URI to bypass security constraints including the protection for /WEB-INF/ and /META-INF/. If PUT requests were also enabled then malicious files could be uploaded leading to remote code execution. PUT requests are normally limited to trusted users and it is considered unlikely that PUT requests would be enabled in conjunction with a rewrite that manipulated the URI. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.10, from 10.1.0-M1 through 10.1.44, from 9.0.0.M11 through 9.0.108. The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.6 though 8.5.100. Other, older, EOL versions may also be affected. Users are recommended to upgrade to version 11.0.11 or later, 10.1.45 or later or 9.0.109 or later, which fix the issue.

Risk And Classification

Primary CVSS: v3.1 7.5 HIGH from ADP

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

Problem Types: CWE-23 | CWE-23 CWE-23 Relative Path Traversal


VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED7.5HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary7.5HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Apache Tomcat All All All All
Application Apache Tomcat All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Apache Software Foundation Apache Tomcat affected 11.0.0-M1 11.0.10 semver Not specified
CNA Apache Software Foundation Apache Tomcat affected 10.1.0-M1 10.1.44 semver Not specified
CNA Apache Software Foundation Apache Tomcat affected 9.0.0.M11 9.0.108 semver Not specified
CNA Apache Software Foundation Apache Tomcat affected 8.5.6 8.5.100 semver Not specified
CNA Apache Software Foundation Apache Tomcat unknown 3 8.5.0 semver Not specified
CNA Apache Software Foundation Apache Tomcat unknown 10.0.0-M1 10.0.27 semver Not specified
ADP Siemens SIMATIC CN 4100 affected V5.0 custom Not specified

References

ReferenceSourceLinkTags
www.openwall.com/lists/oss-security/2025/10/27/4 af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Mailing List, Third Party Advisory
www.vicarius.io/vsociety/posts/cve-2025-55752-mitigate-apache-tomcat-vulnerab... af854a3a-2127-422b-91ae-364da2661108 www.vicarius.io Mitigation, Third Party Advisory
lists.apache.org/thread/n05kjcwyj1s45ovs8ll1qrrojhfb1tog [email protected] lists.apache.org Issue Tracking, Vendor Advisory
www.vicarius.io/vsociety/posts/cve-2025-55752-detect-apache-tomcat-vulnerability af854a3a-2127-422b-91ae-364da2661108 www.vicarius.io Exploit, Third Party Advisory
cert-portal.siemens.com/productcert/html/ssa-032379.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Chumy Tsai (github.com/Jimmy01240397) @ CyCraft Technology Intern (en)

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