# CVE-2025-24813: Apache Tomcat Path Equivalence Vulnerability

- Exploited (CISA KEV): yes, added 2025-04-01
- Published: 2025-03-10
- CVSS: 10 CRITICAL (v3.1)
- EPSS: 99.9% (100th percentile)
- CWE: CWE-44, CWE-502

Path Equivalence: 'file.Name' (Internal Dot) leading to Remote Code Execution and/or Information disclosure and/or malicious content added to uploaded files via write enabled Default Servlet in Apache Tomcat.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.2, from 10.1.0-M1 through 10.1.34, from 9.0.0.M1 through 9.0.98.
The following versions were EOL at the time the CVE was created but are 
known to be affected: 8.5.0 though 8.5.100. Other, older, EOL versions 
may also be affected.


If all of the following were true, a malicious user was able to view       security sensitive files and/or inject content into those files:
- writes enabled for the default servlet (disabled by default)
- support for partial PUT (enabled by default)
- a target URL for security sensitive uploads that was a sub-directory of a target URL for public uploads
- attacker knowledge of the names of security sensitive files being uploaded
- the security sensitive files also being uploaded via partial PUT

If all of the following were true, a malicious user was able to       perform remote code execution:
- writes enabled for the default servlet (disabled by default)
- support for partial PUT (enabled by default)
- application was using Tomcat's file based session persistence with the default storage location
- application included a library that may be leveraged in a deserialization attack

Users are recommended to upgrade to version 11.0.3, 10.1.35 or 9.0.99, which fixes the issue.

## Edge WAF coverage (claimed by vendors, not measured)

| Vendor | Status | First rule | Days after publication |
|---|---|---|---|
| Cloudflare | Blocks by default | 2025-04-02 | 23 |
| AWS | No public claim | — | — |
| Microsoft Azure | No public claim | — | — |
| Google Cloud | No public claim | — | — |
| Fastly | Before feed history | — | — |
| F5 | Rule published | 2025-04-28 | 49 |
| Akamai | No public source | — | — |
| OWASP CRS | No public claim | — | — |

### Cloudflare

- 2025-04-02 · new · rule d104e3246dc14ac7851b4049d9d8c5f2 · default Block
  > Apache Tomcat - Remote Code Execution - CVE:CVE-2025-24813. Previous action: Log. New action: Block. This is a New Detection
  Source: https://developers.cloudflare.com/changelog/post/2025-04-02-waf-release/

### F5

- 2025-04-28 · new · rule 200020223
  > Added: signature 200020223 "Apache Tomcat Path Equivalence Unrestricted File Upload" (Malicious File Upload, risk High), systems: Java Servlets/JSP, Apache Tomcat. References: CVE-2025-24813.
  Source: https://docs.cloud.f5.com/docs-v2/platform/changelogs/security-details-changelog
- 2025-04-28 · new · rule 200204010
  > Added: signature 200204010 "Apache Tomcat Path Equivalence Remote Code Execution" (Server Side Code Injection, risk High), systems: Java Servlets/JSP, Apache Tomcat. References: CVE-2025-24813.
  Source: https://docs.cloud.f5.com/docs-v2/platform/changelogs/security-details-changelog
- 2025-05-22 · new · rule 200020223
  > Added: signature 200020223 "Apache Tomcat Path Equivalence Unrestricted File Upload" (Malicious File Upload, risk High), systems: Java Servlets/JSP, Apache Tomcat. References: CVE-2025-24813.
  Source: https://docs.cloud.f5.com/docs-v2/platform/changelogs/security-details-changelog
- 2025-05-22 · new · rule 200204010
  > Added: signature 200204010 "Apache Tomcat Path Equivalence Remote Code Execution" (Server Side Code Injection, risk High), systems: Java Servlets/JSP, Apache Tomcat. References: CVE-2025-24813.
  Source: https://docs.cloud.f5.com/docs-v2/platform/changelogs/security-details-changelog

## Our test (measured)

- OWASP Core Rule Set 4.25.0, paranoia level 1, anomaly threshold 5, default CRS settings: partial (1 of 3 requests blocked), template CVE-2025-24813, 2026-11-02
- OWASP Core Rule Set 4.25.0, paranoia level 2, anomaly threshold 5, default CRS settings: partial (1 of 3 requests blocked), template CVE-2025-24813, 2026-11-02

"No public claim" means no vendor statement names this CVE; "Before feed history" means the CVE is older than the vendor feed. In both cases generic rules may still block it.

HTML: https://cve.vigilbase.com/cve/CVE-2025-24813 · JSON: https://cve.vigilbase.com/api/v1/cves/CVE-2025-24813