CVE-2026-30615
Windsurf Web Application Command Injection Vulnerability
Description
A prompt injection vulnerability in Windsurf 1.9544.26 allows remote attackers to execute arbitrary commands on a victim system. When Windsurf processes attacker-controlled HTML content, malicious instructions can cause unauthorized modification of the local MCP configuration and automatic registration of a malicious MCP STDIO server, resulting in execution of arbitrary commands without further user interaction. Successful exploitation may allow attackers to execute commands on behalf of the user, persist malicious MCP configuration changes, and access sensitive information exposed through the application.
INFO
Published Date :
April 15, 2026, 4:16 p.m.
Last Modified :
April 27, 2026, 7:18 p.m.
Remotely Exploit :
No
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-30615
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Solution
- Update Windsurf to the latest version.
- Review and sanitize all HTML content.
- Monitor for unauthorized MCP configurations.
- Remove any malicious MCP STDIO servers.
Public PoC/Exploit Available at Github
CVE-2026-30615 has a 11 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-30615.
| URL | Resource |
|---|---|
| https://www.ox.security/blog/mcp-supply-chain-advisory-rce-vulnerabilities-across-the-ai-ecosystem/ |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-30615 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-30615
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Drop-in Rust sidecar for MCP servers — scans tool calls for prompt injection, validates Ed25519 manifest signatures, blocks marketplace-poisoning vectors. <5ms p99 overhead. Defense against OX Security MCP advisory (10+ CVEs, April 2026).
anthropic built-in-mallorca claude ed25519 mcp mcp-security mcp-server model-context-protocol prompt-injection rust security sidecar signature supply-chain-security
Rust
Open-source security scanner for MCP servers — finds auth issues, SSRF, prompt injection, and more before attackers do.
Python HTML
Security scanner for Model Context Protocol (MCP) configurations. Detects command injection, insecure transports, hardcoded secrets, and known CVEs.
JavaScript TypeScript
Security gateway for MCP traffic. 5 built-in rules block prompt injection, credential leakage, path traversal, cross-repo exfiltration, and destructive commands. One pip install, zero config.
mcp security python proxy claude ai-agents prompt-injection self-hosted model-context-protocol llm-security ai-security cursor security-tools path-traversal credential-leakage
Python
Evil-MCP-server harness to test MCP clients (Cursor, Claude Code, Windsurf) against 10 scenarios: name collision, oversized responses, Unicode bidi, prompt injection, schema race, config-write RCE, and more. Companion to mcp-security-scanner.
JavaScript
macOS vulnerability check script - detects 23 recent supply chain attacks and CVEs (Jan-Apr 2026)
Shell
Scan a repo for AI-IDE config files that can trigger RCE via Claude Code hooks, Cursor rules, MCP auto-registration. Detects CVE-2025-59536, CVE-2026-21852, CVE-2026-30615 + Pillar Rules File Backdoor patterns.
JavaScript
🤖 Curated AI OSINT resources — Google dorks, Shodan queries, GitHub dorks, and techniques to discover exposed LLM endpoints, leaked AI API keys, misconfigured vector databases, and unprotected AI agents
ai-osint ai-security api-keys artificial-intelligence bug-bounty cybersecurity google-dorks hacking llm-security machine-learning mcp-security ollama osint owasp pentesting prompt-injection reconnaissance red-team shodan vector-database
This report analyzes the collapse of the cyber weapons supply chain and its impact on national security through the case of the Coruna iOS Exploit Kit. Cyber warfare has evolved into a decentralized and commercialized threat ecosystem
Cathedral-Grade Security for AI Agents. Attack vectors updated daily. Local-first, zero API cost. MIT licensed.
Python
quick && easy rules for my terminal based on latest prompting research combined together
Shell Python TypeScript Just
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-30615 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-30615 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Apr. 15, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H Added CWE CWE-77 -
New CVE Received by [email protected]
Apr. 15, 2026
Action Type Old Value New Value Added Description A prompt injection vulnerability in Windsurf 1.9544.26 allows remote attackers to execute arbitrary commands on a victim system. When Windsurf processes attacker-controlled HTML content, malicious instructions can cause unauthorized modification of the local MCP configuration and automatic registration of a malicious MCP STDIO server, resulting in execution of arbitrary commands without further user interaction. Successful exploitation may allow attackers to execute commands on behalf of the user, persist malicious MCP configuration changes, and access sensitive information exposed through the application. Added Reference https://www.ox.security/blog/mcp-supply-chain-advisory-rce-vulnerabilities-across-the-ai-ecosystem/