{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-10-13T23:05:35.885","vulnerabilities":[{"cve":{"id":"CVE-2026-55376","sourceIdentifier":"security-advisories@github.com","published":"2026-10-13T16:17:21.720","lastModified":"2026-10-13T16:17:21.853","vulnStatus":"Deferred","cveTags":[],"descriptions":[{"lang":"en","value":"Heym builds and runs agentic systems and business-process automations on self-hosted infrastructure. Prior to 0.0.40, an authenticated user who can create or edit a workflow with an Agent custom Python tool can bypass the blacklist-based sandbox in backend/app/services/python_tool_executor.py because allowed standard-library modules expose operating-system, process, and filesystem capabilities through public attributes that pass _safe_import() and _validate_code_safety(). The runner then executes the supplied tool with exec(), permitting commands and file operations as the backend application user; self-registration affects reachability, but portal triggering alone does not grant code control. This issue is fixed in 0.0.40."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"heymrun","product":"heym","versions":[{"version":"< 0.0.40","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":8.8,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":2.8,"impactScore":5.9}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Primary","description":[{"lang":"en","value":"CWE-78"},{"lang":"en","value":"CWE-94"},{"lang":"en","value":"CWE-693"}]}],"references":[{"url":"https://github.com/heymrun/heym/commit/b36d795c6ea841b8f1b511a0952e274487ee4ef3","source":"security-advisories@github.com"},{"url":"https://github.com/heymrun/heym/releases/tag/v0.0.40","source":"security-advisories@github.com"},{"url":"https://github.com/heymrun/heym/security/advisories/GHSA-wcgw-9hfw-f6f2","source":"security-advisories@github.com"}]}}]}