CVE-2025-55752: tomcat Path Traversal

Description

Relative 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.

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CVSS v3.1 Score

7.5

HIGH

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

Weakness Type (CWE)

CWE-23 CWE-23

Affected Products

Vendor	Product	Versions
apache	tomcat	8.5.6 — 8.5.100
apache	tomcat	9.0.1 — 9.0.109
apache	tomcat	10.0.0 — 10.0.27
apache	tomcat	10.1.0 — 10.1.45
apache	tomcat	11.0.0 — 11.0.11
apache	tomcat	All
apache	tomcat	All
apache	tomcat	All
apache	tomcat	All
apache	tomcat	All
apache	tomcat	All
apache	tomcat	All
apache	tomcat	All
apache	tomcat	All
apache	tomcat	All
apache	tomcat	All
apache	tomcat	All
apache	tomcat	All
apache	tomcat	All
apache	tomcat	All
apache	tomcat	All
apache	tomcat	All
apache	tomcat	All

References

Advisories & Patches

https://lists.apache.org/thread/n05kjcwyj1s45ovs8ll1qrrojhfb1tog

Exploits

https://www.vicarius.io/vsociety/posts/cve-2025-55752-detect-apache-tomcat-vulnerability

Other References

http://www.openwall.com/lists/oss-security/2025/10/27/4 https://www.vicarius.io/vsociety/posts/cve-2025-55752-mitigate-apache-tomcat-vulnerability https://cert-portal.siemens.com/productcert/html/ssa-032379.html

Frequently Asked Questions

What is CVE-2025-55752? +

Relative 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. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2025-55752? +

CVE-2025-55752 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-55752? +

CVE-2025-55752 affects products from apache, specifically: tomcat. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-55752? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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