{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-100860","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2026-09-27T00:20:03.854Z","datePublished":"2026-09-27T01:28:50.589Z","dateUpdated":"2026-09-27T01:28:50.589Z"},"containers":{"cna":{"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-09-27T01:28:50.589Z"},"datePublic":"2026-09-03T00:00:00.000Z","title":"heym before 0.0.105 Authentication Bypass via Redis Node","descriptions":[{"lang":"en","value":"heym before 0.0.105 does not act on the result of the credential authorization lookup in the Redis workflow node (backend/app/services/node_execution/nodes/redis_node.py). When _get_accessible_credential returns None — because the credential ID does not exist or the caller is not authorized to use it — the node treats the lookup failure as an empty configuration and falls back to defaults, connecting to localhost:6379 with no password and executing the requested operation there. The same fallback occurs when an accessible credential has an empty config or no redis_host value. An authenticated workflow author who supplies a credential ID they do not own, or one that was deleted, therefore obtains a read/write connection to whatever Redis is listening on the backend's loopback interface instead of an error. Impact depends on the deployment: the stock docker-compose.yml ships no Redis, in which case the flaw surfaces as a misleading connection error rather than data exposure."}],"problemTypes":[{"descriptions":[{"lang":"en","description":"Not Failing Securely ('Failing Open')","cweId":"CWE-636","type":"CWE"}]}],"affected":[{"vendor":"heymrun","product":"heym","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","versionType":"semver","lessThan":"0.0.105"},{"version":"0.0.105","status":"unaffected","versionType":"semver"}]}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"LOCAL","baseScore":6.8,"baseSeverity":"MEDIUM","exploitMaturity":"NOT_DEFINED","privilegesRequired":"LOW","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"NONE","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS"},{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"NONE","baseScore":5.5,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"format":"CVSS"}],"references":[{"url":"https://github.com/heymrun/heym/security/advisories/GHSA-fmpw-hj3m-xvj6","tags":["vendor-advisory"],"name":"GitHub Security Advisory (GHSA-fmpw-hj3m-xvj6)"},{"name":"VulnCheck Advisory: heym before 0.0.105 Authentication Bypass via Redis Node","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/heym-before-0.0.105-authentication-bypass-via-redis-node"}],"credits":[{"lang":"en","value":"fatihkaratash","type":"reporter"}],"x_generator":{"engine":"vulncheck-endgame"}}}}