What is the CVSS score of CVE-2026-23523?

CVE-2026-23523 has a CVSS 3.1 base score of 9.6 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H. EPSS exploitation probability: 0.0%.

Is there a public PoC exploit available for CVE-2026-23523?

Yes, a public proof-of-concept exploit is available for CVE-2026-23523. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2026-23523?

Within 24 hours: Identify all affected systems and apply vendor patches immediately. Validate that input sanitization is in place for all user-controlled parameters.

Dive CVE-2026-23523

Q: Which versions of Dive are affected by CVE-2026-23523?

Organizations using Dive face critical risk from CVE-2026-23523, a code injection vulnerability rated CVSS 9.6.. A patch is available.

CRITICAL

Code Injection (CWE-94)

2026-01-16 security-advisories@github.com

RCE Code Injection AI / ML Dive

9.6

CVSS 3.1 · GitHub Advisory

View

Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

Access

Craft malicious deeplink URI
Exploit

Trick user into clicking link
Execution

MCP server config installed without confirmation
Impact

Arbitrary command execution via MCP server

Vulnerability Assessment

Weakness	CWE CWE-94 OWASP Top 10:2025 A05:2025 - Injection ASVS 5.0 V1 - Encoding and Sanitization Code injection prevention, sandbox exec MITRE ATT&CK 2 techniques across 2 tactics: Execution, Initial Access The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Exploitation Conditions	User must click attacker-crafted deeplink in Dive versions prior to 0.13.0. Requires UI interaction (UI:R). No authentication or special configuration needed beyond running vulnerable Dive version.
Impact	CVSS 9.6 with PoC available. MCP is an emerging protocol for AI tool integration — this vulnerability highlights supply chain risks in the AI agent ecosystem.
Exploit ScenarioDerived	A user connects Dive to a compromised or malicious MCP server. The server returns a crafted tool response containing injected code that Dive executes with the user's desktop privileges, potentially exfiltrating credentials or installing malware.

Act Now Prioritize within 24-48h. Why: CRITICAL severity + public POC available.

Patch available 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 12, 2026

Dive, an MCP Host Desktop Application for LLM integration, allows code injection prior to version 0.13.0 through malicious tool responses, enabling attackers to execute arbitrary code on the user's machine.

Earlier versions of this analysis (1)

v1 Mar 12, 2026 - 21:54 CVSS 9.6

Code injection via malicious MCP tool responses in Dive desktop app enables local RCE.

RemediationAI

Update Dive to version 0.13.0 or later. Only connect to trusted MCP servers. Review MCP server configurations.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

Dive (< 0.13.0) fails to sanitize responses from MCP (Model Context Protocol) tools before processing them (CWE-94). A malicious MCP server can craft tool responses containing injected code that executes in the Dive desktop application context.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

GitHub Advisory PRIMARY 9.6 CRITICAL

AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

PoC Detected

Feb 09, 2026 - 20:45 vuln.today

Public exploit code

Patch released

Feb 09, 2026 - 20:45 nvd

Patch available

CVE Published

Jan 16, 2026 - 17:15 nvd

CRITICAL 9.6

DescriptionGitHub Advisory

Dive is an open-source MCP Host Desktop Application that enables integration with function-calling LLMs. Prior to 0.13.0, crafted deeplink can install an attacker-controlled MCP server configuration without sufficient user confirmation and can lead to arbitrary local command execution on the victim’s machine. This vulnerability is fixed in 0.13.0.

Executive ViewAI

Why It Matters

Organizations using Dive face critical risk from CVE-2026-23523, a code injection vulnerability rated CVSS 9.6. Successful exploitation could allow attackers to execute arbitrary code or commands on affected systems, potentially leading to full system compromise. Proof-of-concept code is publicly available, increasing the risk of exploitation. A patch is available and should be applied immediately given the critical severity.

Business Impact: Severe

Compensating Controls

Apply vendor patch. If immediate patching is not feasible: (1) Deploy WAF rules to block injection patterns; (2) Restrict network access to affected components; (3) Enable enhanced logging for suspicious activity.

Threat Intelligence Overview

EPSS Score

0.0%

Top 92% exploitable

Exploit

POC

Public exploit code exists

Data Quality

4 sources

Confidence: Medium

NVD

CVE.org

EPSS

GitHub

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity CRITICAL

CISA KEV No

Public POC Yes

EPSS 0.0%

Patch available Yes

Active threat No

Deciding rule

CRITICAL severity + public POC available

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Out-of-Cycle

Exploitation· derived

Poc

System Exposure· derived

Open

Automatable· derived

Human Impact

Very High

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +48

PoC: +20

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Code Injection CRITICAL

Code injection occurs when an application accepts user input and passes it directly into a language interpreter or evaluator without proper sanitization.

Remote Code Execution CRITICAL

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.