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HIGH severity

CVE-2025-55752 — tomcat

HIGH

CVE-2025-55752 is a high-severity (CVSS 7.5) CWE-23 vulnerability in org.apache.tomcat:tomcat. 2 public exploit references exist, so weaponization risk is real. A fix is available for org.apache.tomcat:tomcat — see the affected versions and patch details below.

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

Also known asBIT-tomcat-2025-55752GHSA-wmwf-9ccg-fff5
Published
Oct 27, 2025
Updated
Aug 12, 2026
Affected
12 pkgs
Patched
9 / 12
Exploits
2 known
Exploitation data as of Sep 20, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • A successful exploit gives an attacker total control of the affected component, not partial access.
  • CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2025-55752.

EPSS Exploitation Probability

via FIRST.org ↗
66.5%probability of exploitation in next 30 days
High Risk0.00%
Lower risk than most CVEs99th percentile — riskier than 99% of all scored CVEsHighest risk

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

How urgent is this, really

CVE-2025-55752 plotted by exploitation likelihood (EPSS) against impact (CVSS). The shaded corner — EPSS 50%+ and CVSS 7.0+ — is where this CVE sits: patch-first territory.

Where this sits among everything scored

Of 377,333 CVEs with a current EPSS score, this one falls in the 50–90% band (highlighted). Real counts from FIRST.org, not a sample — log-scaled since the landscape is heavily right-skewed.

Real-World Exposure

12 pkgs affected
☕org.apache.tomcat:tomcat☕org.apache.tomcat:tomcat☕org.apache.tomcat:tomcat☕org.apache.tomcat:tomcat☕org.apache.tomcat:tomcat-catalina☕org.apache.tomcat:tomcat-catalina☕org.apache.tomcat:tomcat-catalina☕org.apache.tomcat:tomcat-catalina+4 more

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

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.

Affected Packages

12 total 9 fixed
EcosystemPackageVulnerable rangeFix
☕Mavenorg.apache.tomcat:tomcat≥ 11.0.0-M1&&< 11.0.1111.0.11org.apache.tomcat:tomcat:11.0.11
☕Mavenorg.apache.tomcat:tomcat≥ 10.1.0-M1&&< 10.1.4510.1.45org.apache.tomcat:tomcat:10.1.45
☕Mavenorg.apache.tomcat:tomcat≥ 9.0.0-M11&&< 9.0.1099.0.109org.apache.tomcat:tomcat:9.0.109
☕Mavenorg.apache.tomcat:tomcat≥ 8.5.6No fix
☕Mavenorg.apache.tomcat:tomcat-catalina≥ 11.0.0-M1&&< 11.0.1111.0.11org.apache.tomcat:tomcat-catalina:11.0.11
☕Mavenorg.apache.tomcat:tomcat-catalina≥ 10.1.0-M1&&< 10.1.4510.1.45org.apache.tomcat:tomcat-catalina:10.1.45
Exploits & PoCs
2

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

masahiro331/CVE-2025-55752

⭐ 14🍴 3Apr 2026

TAM-K592/CVE-2025-55752

CVE-2025-55752, Apache Tomcat that allows directory traversal via URL re

⭐ 13🍴 2Feb 2026

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.apache.tomcat:tomcat, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update org.apache.tomcat:tomcat to 11.0.11 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2025-55752 is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like CVE-2025-55752 can be triaged on real exposure rather than presence alone.

Tailored to CVE-2025-55752. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Fixing This On Your OS

If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.

Red HatImportant

This vulnerability is rated as Important rather than Critical because successful exploitation depends on specific, non-default configuration conditions. The flaw only becomes exploitable when both URL rewriting rules that modify the request path are in use and HTTP PUT requests are enabled — a feature typically…

ProductFixed inAdvisory
Red Hat Enterprise Linux 10tomcat-1:10.1.36-3.el10_1.1RHSA-2025:23050
Red Hat Enterprise Linux 10tomcat9-1:9.0.87-8.el10_1.1RHSA-2025:23052
Red Hat Enterprise Linux 10.0 Extended Update Supporttomcat-1:10.1.36-1.el10_0.3RHSA-2025:23051
Red Hat Enterprise Linux 10.0 Extended Update Supporttomcat9-1:9.0.87-5.el10_0.4RHSA-2025:23053
Red Hat Enterprise Linux 8tomcat-1:9.0.87-1.el8_10.7RHSA-2025:23048
Red Hat Enterprise Linux 8.2 Advanced Update Supportpki-deps:10.6-8020020260128173505.4cda2c84RHSA-2026:2725
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Supportpki-deps:10.6-8040020260129154709.522a0ee4RHSA-2026:2724
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Supportpki-deps:10.6-8060020260128101437.ad008a3aRHSA-2026:2726

Frequently Asked Questions

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 unl
O3 Security · Impact-Aware SCA

Is CVE-2025-55752 in your dependencies?

O3 Security finds CVE-2025-55752 across Maven dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.

Scan my dependencies How O3 SCA works
CVE-2025-55752: tomcat RCE (High 7.5) | O3 Security