{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-100862","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2026-09-27T00:20:03.854Z","datePublished":"2026-09-27T01:28:51.915Z","dateUpdated":"2026-09-27T01:28:51.915Z"},"containers":{"cna":{"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-09-27T01:28:51.915Z"},"datePublic":"2026-08-15T00:00:00.000Z","title":"heym before 0.0.91 Multiple Secrets Plaintext Storage","descriptions":[{"lang":"en","value":"heym, a workflow automation platform, stores and returns multiple capability secrets in plaintext in versions prior to 0.0.91. Affected secrets include webhook header-auth values (returned in cleartext by GET /api/workflows/{id} and persisted unsanitized into execution history), MCP API keys (stored as a plaintext column, returned in config/list responses, and accepted via the ?key= query string so they leak into logs, proxies and Referer headers), portal session tokens (stored and validated by plaintext equality with a 168-hour TTL), workflow execution JWTs (stored in full and re-listed by GET .../execution-tokens), Discord interaction tokens (the full interaction body is stored in execution history), and global variables. A user with read access to a workflow, share/team membership, or anyone able to read the database, a backup, or logs can recover these secrets and replay them to execute workflows or act as the secret owner."}],"problemTypes":[{"descriptions":[{"lang":"en","description":"Cleartext Storage of Sensitive Information","cweId":"CWE-312","type":"CWE"}]}],"affected":[{"vendor":"heymrun","product":"heym","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","versionType":"semver","lessThan":"0.0.91"},{"version":"0.0.91","status":"unaffected","versionType":"semver"}]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"HIGH","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":6.9,"baseSeverity":"MEDIUM"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"HIGH","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE","baseScore":4.9,"baseSeverity":"MEDIUM"}}],"references":[{"url":"https://github.com/heymrun/heym/security/advisories/GHSA-6x65-w7q7-wg93","tags":["vendor-advisory"],"name":"GitHub Security Advisory (GHSA-6x65-w7q7-wg93)"},{"name":"VulnCheck Advisory: heym before 0.0.91 Multiple Secrets Plaintext Storage","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/heym-before-0.0.91-multiple-secrets-plaintext-storage"}],"credits":[{"lang":"en","value":"mbakgun","type":"finder"}],"x_generator":{"engine":"vulncheck-endgame"}}}}