CVE-2025-55752
Relative Path Traversal vulnerability in Apache Tomcat.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 64.4%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 64.41% probability · 99th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-23
- Affected
- apache/tomcat
- Source
- security@apache.org
EPSS moved from 64.4% on 27 September 2026 to 64.4% on 31 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
References
- https://lists.apache.org/thread/n05kjcwyj1s45ovs8ll1qrrojhfb1togIssue Tracking, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2025/10/27/4Mailing List, Third Party Advisory
- https://www.vicarius.io/vsociety/posts/cve-2025-55752-detect-apache-tomcat-vulnerabilityExploit, Third Party Advisory
- https://www.vicarius.io/vsociety/posts/cve-2025-55752-mitigate-apache-tomcat-vulnerabilityMitigation, Third Party Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-032379.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.