CVE-2026-67540

{"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": "2026-11-13T00:06:36.792Z"}, "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 \u2014 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"}}, "adp": [{"references": [{"url": "https://github.com/heymrun/heym/security/advisories/GHSA-5748-x76g-v68m", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-11-13T00:06:09.417731Z", "id": "CVE-2026-67540", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-11-13T00:06:36.792Z"}}]}}

{}

{"affected": [{"affectedData": [{"product": "heym", "vendor": "heymrun", "versions": [{"status": "affected", "version": "< 0.0.70"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "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 \u2014 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."}], "id": "CVE-2026-67540", "lastModified": "2026-11-13T02:18:58.270", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-67540", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-11-13T00:06:09.417731Z", "version": "2.0.3"}}]}, "published": "2026-11-11T22:17:28.433", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/heymrun/heym/commit/4bcea469bfeee8c2659de90a1b2d16fdfed9ae97"}, {"source": "security-advisories@github.com", "url": "https://github.com/heymrun/heym/releases/tag/0.0.70"}, {"source": "security-advisories@github.com", "url": "https://github.com/heymrun/heym/security/advisories/GHSA-5748-x76g-v68m"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/heymrun/heym/security/advisories/GHSA-5748-x76g-v68m"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-639"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,0.0.70)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "heym", "source": "cna", "vendor": "heymrun"}, "product": "heym", "vendor": "heymrun"}], "created": "2026-11-12T20:45:05.756711+00:00", "updated": "2026-11-13T07:30:12.034250+00:00", "vendors": ["heymrun", "heymrun$PRODUCT$heym"]}