CVE-2026-76066
7.5, highCrestalnetwork intentkit Missing Authorization Vulnerability
- CVSS
- 7.5, high high CVSS v3.1
- EPSS, next 30 days
- 0.4% higher than 31% of scored CVEs
- Exploitation
- No public evidence
- Published
- 15 Oct 20262 days ago
Description
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.
Details
- Vendor
- Crestalnetwork
- Product
- intentkit
- Weakness
- CWE-862 (opens in a new tab)
- Status
- Received
- Updated
- 15 Oct 2026
- Assigner
- disclosure@vulncheck.com
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
References 2
The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.
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Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 17 Oct 2026, not the live upstream state.