{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-67540","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-07-29T18:47:17.074Z","datePublished":"2026-11-11T21:38:28.344Z","dateUpdated":"2026-11-11T21:38:28.344Z"},"containers":{"cna":{"title":"Heym - Horizontal IDOR: get-by-id on workflow/node templates skips the visibility check the list path enforces","problemTypes":[{"descriptions":[{"cweId":"CWE-639","lang":"en","description":"CWE-639: Authorization Bypass Through User-Controlled Key","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","version":"3.1"}}],"references":[{"name":"https://github.com/heymrun/heym/security/advisories/GHSA-5748-x76g-v68m","tags":["x_refsource_CONFIRM"],"url":"https://github.com/heymrun/heym/security/advisories/GHSA-5748-x76g-v68m"},{"name":"https://github.com/heymrun/heym/commit/4bcea469bfeee8c2659de90a1b2d16fdfed9ae97","tags":["x_refsource_MISC"],"url":"https://github.com/heymrun/heym/commit/4bcea469bfeee8c2659de90a1b2d16fdfed9ae97"},{"name":"https://github.com/heymrun/heym/releases/tag/0.0.70","tags":["x_refsource_MISC"],"url":"https://github.com/heymrun/heym/releases/tag/0.0.70"}],"affected":[{"vendor":"heymrun","product":"heym","versions":[{"version":"< 0.0.70","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-11-11T21:38:28.344Z"},"descriptions":[{"lang":"en","value":"Heym builds and runs agentic systems and business-process automations on self-hosted infrastructure. Prior to version 0.0.70, get_workflow_template / get_node_template fetches a template by ID with no visibility / author / shared_with predicate, so any authenticated user can read (and use) any other tenant's private (visibility=specific_users) template — including its full node/edge graph and the email addresses it was shared with. The list endpoint enforces visibility correctly; the single-item get/use paths do not. This issue has been patched in version 0.0.70."}],"source":{"advisory":"GHSA-5748-x76g-v68m","discovery":"UNKNOWN"}}}}