IntentKit 2.6.3 Executor Tool Authorization Bypass via ToolNode
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.
CVE-2026-76066
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-76066
intentkit
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://github.com/crestalnetwork/intentkit",
"vendor": "crestalnetwork",
"product": "intentkit",
"versions": [
{
"status": "affected",
"version": "0",
"versionType": "semver",
"lessThanOrEqual": "2.6.3"
},
{
"status": "unaffected",
"version": "5b91da5734d1ac16cd656fa66a86caf8f15cd671",
"versionType": "git"
}
],
"packageURL": "pkg:github/crestalnetwork/intentkit",
"defaultStatus": "unknown"
}
]- Related CVEs
- CVE-2026-76066
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #50397 · Revision 1
- Added to Heist Feed
- Publisher date