---
id: CVE-2026-76066
title: >-
  IntentKit through 2.6.3 contains an authorization bypass vulnerability where
  the executor validates tool calls against the full tool registry rather than
  the per-request narrowed tool advertisement enforced by ToolBindingMiddleware,
  allo…
summary: >-
  IntentKit through 2.6.3 contains an authorization bypass vulnerability where
  the executor validates tool calls against the full tool registry rather than
  the per-request narrowed tool advertisement enforced by ToolBindingMiddleware,
  allo…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N'
cwe:
  - CWE-862
vendor: crestalnetwork
product: intentkit
affected:
  - intentkit <= 2.6.3
published: '2026-10-15'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T14:17:27.283'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-76066'
references:
  - url: 'https://www.lasso.security/vulnerability-database/cve-2026-76066'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/intentkit-executor-tool-authorization-bypass-via-toolnode
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/crestalnetwork/intentkit/commit/5b91da5734d1ac16cd656fa66a86caf8f15cd671
    label: Patch Commit
tags:
  - nvd
  - cve.org
  - exploit-available
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-10-15T13:21:43.474539Z'
ingestedAt: '2026-10-15T03:30:12.926Z'
epss: 0.00441
epssPercentile: 0.38164
---

## Overview

IntentKit through 2.6.3 contains an authorization bypass vulnerability where the executor validates tool calls against the full tool registry rather than the per-request narrowed tool advertisement enforced by ToolBindingMiddleware, allowing owner-only state-changing tools such as wallet transfer, posting, memory-write, and call-agent to execute without any human-in-the-loop or approval gate. An unauthenticated or public caller in WEB, API, TWITTER, or TELEGRAM contexts can exploit this by supplying the exact de-advertised tool name and arguments via indirect prompt injection or by replaying checkpoint and history data on a reused thread, achieving unauthorized execution of owner-restricted capabilities.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.