Changelog

New updates and improvements at Cloudflare.

Subscribe to RSS
View all RSS feeds

← Back to all posts

WAF Release - 2025-09-22

Sep 22, 2025

WAF

This week emphasizes two critical vendor-specific vulnerabilities: a full elevation-of-privilege in Microsoft Azure Networking (CVE-2025-54914) and a server-side template injection (SSTI) leading to remote code execution (RCE) in Skyvern (CVE-2025-49619). These are complemented by enhancements in generic detections (SQLi, SSRF) to improve baseline coverage.

Key Findings

• Azure (CVE-2025-54914): Vulnerability in Azure Networking allowing elevation of privileges.

• Skyvern (CVE-2025-49619): Skyvern ≤ 0.1.85 has a server-side template injection (SSTI) vulnerability in its Prompt field (workflow blocks) via Jinja2. Authenticated users with low privileges can get remote code execution (blind).

• Generic SQLi / SSRF improvements: Expanded rule coverage to detect obfuscated SQL injection patterns and SSRF across host, local, and cloud contexts.

Impact

These vulnerabilities allow attackers to escalate privileges or execute code under conditions where previously they could not:

• Azure CVE-2025-54914 enables an attacker from the network with no credentials to gain high-level access within Azure Networking; could lead to full compromise of networking components.

• Skyvern CVE-2025-49619 allows authenticated users with minimal privilege to exploit SSTI for remote code execution, undermining isolation of workflow components.

• The improvements for SQLi and SSRF reduce risk from common injection and request-based attacks.

Ruleset	Rule ID	Legacy Rule ID	Description	Previous Action	New Action	Comments
Cloudflare Managed Ruleset	...6a135cbf	100146	SSRF - Host - 2	Log	Disabled	This is a New Detection
Cloudflare Managed Ruleset	...57035abf	100146B	SSRF - Local - 2	Log	Disabled	This is a New Detection
Cloudflare Managed Ruleset	...bbe18d50	100146C	SSRF - Cloud - 2	Log	Disabled	This is a New Detection
Cloudflare Managed Ruleset	...956c1961	100714	Azure - Auth Bypass - CVE:CVE-2025-54914	Log	Block	This is a New Detection
Cloudflare Managed Ruleset	...c5ced231	100758	Skyvern - Remote Code Execution - CVE:CVE-2025-49619	Log	Block	This is a New Detection
Cloudflare Managed Ruleset	...84a619a1	100773	Next.js - SSRF	Log	Block	This is a New Detection
Cloudflare Managed Ruleset	...983ff2dd	100774	Adobe Commerce - Remote Code Execution - CVE:CVE-2025-54236	Log	Block	This is a New Detection
Cloudflare Managed Ruleset	...0380a1a6	100800_BETA	SQLi - Obfuscated Boolean - Beta	Log	Block	This rule has been merged into the original rule (ID: ...5563445f )