{"id":"CVE-2026-100862","state":"PUBLISHED","title":"heym before 0.0.91 Multiple Secrets Plaintext Storage","description":"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.","publishedAt":"2026-09-27T01:28:51.915Z","updatedAt":"2026-09-30T15:49:32.160Z","severity":{"score":6.9,"label":"Medium","version":"4.0","vector":"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","source":"VulnCheck"},"assigner":"VulnCheck","products":["heymrun heym"],"affected":[{"vendor":"heymrun","product":"heym","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"0.0.91","versionType":"semver"},{"version":"0.0.91","status":"unaffected","versionType":"semver"}]}],"references":["https://github.com/heymrun/heym/security/advisories/GHSA-6x65-w7q7-wg93","https://www.vulncheck.com/advisories/heym-before-0.0.91-multiple-secrets-plaintext-storage"],"weaknesses":["CWE-312"],"ingestedAt":"2026-10-29T20:10:13.529Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/100xxx/CVE-2026-100862.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-100862","state":"PUBLISHED","datePublished":"2026-09-27T01:28:51.915Z","dateUpdated":"2026-09-30T15:49:32.160Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-09-27T00:20:03.854Z"},"containers":{"cna":{"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."}],"affected":[{"vendor":"heymrun","product":"heym","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"0.0.91","versionType":"semver"},{"version":"0.0.91","status":"unaffected","versionType":"semver"}]}],"references":[{"url":"https://github.com/heymrun/heym/security/advisories/GHSA-6x65-w7q7-wg93","tags":["vendor-advisory"],"name":"GitHub Security Advisory (GHSA-6x65-w7q7-wg93)"},{"url":"https://www.vulncheck.com/advisories/heym-before-0.0.91-multiple-secrets-plaintext-storage","name":"VulnCheck Advisory: heym before 0.0.91 Multiple Secrets Plaintext Storage","tags":["third-party-advisory"]}],"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-312","lang":"en","description":"Cleartext Storage of Sensitive Information","type":"CWE"}]}],"providerMetadata":{"shortName":"VulnCheck","orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateUpdated":"2026-09-27T01:28:51.915Z"},"datePublic":"2026-08-15T00:00:00.000Z","credits":[{"lang":"en","value":"mbakgun","type":"finder"}],"x_generator":{"engine":"vulncheck-endgame"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-30T15:49:19.062351Z","id":"CVE-2026-100862","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-30T15:49:32.160Z"}}]}}}