{"id":"CVE-2026-100865","state":"PUBLISHED","title":"Heym before 0.0.53 Remote Code Execution via eval() Sandbox Escape","description":"Heym before 0.0.53 evaluates workflow condition expressions using Python's eval() with insufficient sandboxing in the workflow executor service. Authenticated users can edit workflow condition nodes or import malicious templates to execute arbitrary Python and OS commands as the backend process user.","publishedAt":"2026-09-27T01:28:53.874Z","updatedAt":"2026-09-28T13:40:50.761Z","severity":{"score":8.7,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","source":"VulnCheck"},"assigner":"VulnCheck","products":["heymrun heym"],"affected":[{"vendor":"heymrun","product":"heym","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"0.0.53","versionType":"semver"},{"version":"0.0.53","status":"unaffected","versionType":"semver"}]}],"references":["https://github.com/heymrun/heym/security/advisories/GHSA-pm6h-x3h5-j38h","https://github.com/heymrun/heym/commit/341d1012367cd74f85c617e1c98dd49e3fcb5e83"],"weaknesses":["CWE-94"],"ingestedAt":"2026-10-29T20:10:13.529Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/100xxx/CVE-2026-100865.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-100865","state":"PUBLISHED","datePublished":"2026-09-27T01:28:53.874Z","dateUpdated":"2026-09-28T13:40:50.761Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-09-27T00:20:54.407Z"},"containers":{"cna":{"title":"Heym before 0.0.53 Remote Code Execution via eval() Sandbox Escape","descriptions":[{"lang":"en","value":"Heym before 0.0.53 evaluates workflow condition expressions using Python's eval() with insufficient sandboxing in the workflow executor service. Authenticated users can edit workflow condition nodes or import malicious templates to execute arbitrary Python and OS commands as the backend process user."}],"affected":[{"vendor":"heymrun","product":"heym","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"0.0.53","versionType":"semver"},{"version":"0.0.53","status":"unaffected","versionType":"semver"}]}],"references":[{"url":"https://github.com/heymrun/heym/security/advisories/GHSA-pm6h-x3h5-j38h","tags":["vendor-advisory"],"name":"GitHub Security Advisory (GHSA-pm6h-x3h5-j38h)"},{"url":"https://github.com/heymrun/heym/commit/341d1012367cd74f85c617e1c98dd49e3fcb5e83","tags":["patch"],"name":"Patch Commit"}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":8.7,"baseSeverity":"HIGH"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-94","lang":"en","description":"Improper Control of Generation of Code ('Code Injection')","type":"CWE"}]}],"providerMetadata":{"shortName":"VulnCheck","orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateUpdated":"2026-09-27T16:27:54.582Z"},"datePublic":"2026-06-26T00:00:00.000Z","credits":[{"lang":"en","value":"okcomputerfan","type":"finder"},{"lang":"en","value":"mbakgun","type":"remediation developer"}],"x_generator":{"engine":"vulncheck-endgame"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/heymrun/heym/security/advisories/GHSA-pm6h-x3h5-j38h","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-28T13:40:05.918419Z","id":"CVE-2026-100865","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-28T13:40:50.761Z"}}]}}}