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CVE PROGRAM SOURCE RECORD8.7 High

CVE-2026-76066

IntentKit 2.6.3 Executor Tool Authorization Bypass via ToolNode

Description

IntentKit through 2.6.3, fixed in commit 5b91da5, 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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

crestalnetwork intentkit

Default version status: unknown

  • 0 to ≤ 2.6.3affected
  • 5b91da5734d1ac16cd656fa66a86caf8f15cd671unaffected
pkg:github/crestalnetwork/intentkit

References