{"id":"CVE-2026-76066","state":"PUBLISHED","title":"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.","publishedAt":"2026-10-15T01:39:56.474Z","updatedAt":"2026-10-22T16:32:28.459Z","severity":{"score":8.7,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","source":"VulnCheck"},"assigner":"VulnCheck","products":["crestalnetwork intentkit"],"affected":[{"vendor":"crestalnetwork","product":"intentkit","packageURL":"pkg:github/crestalnetwork/intentkit","defaultStatus":"unknown","versions":[{"version":"0","status":"affected","lessThanOrEqual":"2.6.3","versionType":"semver"},{"version":"5b91da5734d1ac16cd656fa66a86caf8f15cd671","status":"unaffected","versionType":"git"}],"repo":"https://github.com/crestalnetwork/intentkit"}],"references":["https://www.lasso.security/vulnerability-database/cve-2026-76066","https://github.com/crestalnetwork/intentkit/commit/5b91da5734d1ac16cd656fa66a86caf8f15cd671","https://www.vulncheck.com/advisories/intentkit-executor-tool-authorization-bypass-via-toolnode"],"weaknesses":["CWE-862"],"ingestedAt":"2026-10-29T20:12:58.252Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/76xxx/CVE-2026-76066.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-76066","state":"PUBLISHED","datePublished":"2026-10-15T01:39:56.474Z","dateUpdated":"2026-10-22T16:32:28.459Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-08-18T21:04:48.503Z"},"containers":{"cna":{"title":"IntentKit 2.6.3 Executor Tool Authorization Bypass via ToolNode","descriptions":[{"lang":"en","value":"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. 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