WAF Release - Protections for Apache Tomcat, MongoDB, and Fortinet vulnerabilities
Cloudflare WAF has released new detection rules for critical vulnerabilities in Apache Tomcat (memory leak DoS), MongoDB Mongoose (injection attacks), and Fortinet FortiWeb (SQL injection). These protections help defend against data theft, unauthorized access, and denial-of-service attacks targeting web applications and databases.
This week’s update spotlights several vulnerabilities across Apache Tomcat, MongoDB, and Fortinet FortiWeb. Several flaws related with a memory leak in Apache Tomcat can lead to a denial-of-service attack. Additionally, a code injection flaw in MongoDB's Mongoose library allows attackers to bypass security controls to access restricted data.
Key Findings
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Fortinet FortiWeb (CVE-2025-25257): An improper neutralization of special elements used in a SQL command vulnerability in Fortinet FortiWeb versions allows an unauthenticated attacker to execute unauthorized SQL code or commands.
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Apache Tomcat (CVE-2025-31650): A improper Input Validation vulnerability in Apache Tomcat that could create memory leak when incorrect error handling for some invalid HTTP priority headers resulted in incomplete clean-up of the failed request.
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MongoDB (CVE-2024-53900, CVE:CVE-2025-23061): Improper use of
$wherein match and a nested$wherefilter with apopulate()match in Mongoose can lead to search injection.
Impact
These vulnerabilities target user-facing components, web application servers, and back-end databases. A SQL injection flaw in Fortinet FortiWeb can lead to data theft or system compromise. A separate issue in Apache Tomcat involves a memory leak from improper input validation, which could be exploited for a denial-of-service (DoS) attack. Finally, a vulnerability in MongoDB's Mongoose library allows attackers to bypass security filters and access unauthorized data through malicious search queries.
| Ruleset | Rule ID | Legacy Rule ID | Description | Previous Action | New Action | Comments |
|---|---|---|---|---|---|---|
| Cloudflare Managed Ruleset | ...3461ec9e | 100804 | BerriAI - SSRF - CVE:CVE-2024-6587 | Log | Disabled | This is a New Detection |
| Cloudflare Managed Ruleset | ...0cb13e1d | 100812 | Fortinet FortiWeb - Remote Code Execution - CVE:CVE-2025-25257 | Log | Block | This is a New Detection |
| Cloudflare Managed Ruleset | ...67fae7f7 | 100813 | Apache Tomcat - DoS - CVE:CVE-2025-31650 | Log | Disabled | This is a New Detection |
| Cloudflare Managed Ruleset | ...4b6a5bb1 | 100815 | MongoDB - Remote Code Execution - CVE:CVE-2024-53900, CVE:CVE-2025-23061 | Log | Block | This is a New Detection |
| Cloudflare Managed Ruleset | ...688f8e79 | 100816 | MongoDB - Remote Code Execution - CVE:CVE-2024-53900, CVE:CVE-2025-23061 | Log | Block | This is a New Detection |
Source: original entry ↗
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