{"id":"CVE-2026-101050","state":"PUBLISHED","title":"Heym before 0.0.53 Authentication Bypass via Telegram Webhook","description":"Heym before 0.0.53 fails to verify the X-Telegram-Bot-Api-Secret-Token header on Telegram webhook endpoints when credential_id is absent or secret_token is empty. Remote unauthenticated attackers can post forged Telegram updates to trigger workflows with the owner's configured credentials and execute actions on attacker-supplied input.","publishedAt":"2026-09-27T16:28:28.766Z","updatedAt":"2026-09-28T13:14:37.706Z","severity":{"score":8.3,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:H/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":"0.0.53","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","https://www.vulncheck.com/advisories/heym-before-0.0.53-authentication-bypass-via-telegram-webhook"],"weaknesses":["CWE-287"],"ingestedAt":"2026-10-29T20:10:13.529Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/101xxx/CVE-2026-101050.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-101050","state":"PUBLISHED","datePublished":"2026-09-27T16:28:28.766Z","dateUpdated":"2026-09-28T13:14:37.706Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-09-27T15:48:49.472Z"},"containers":{"cna":{"title":"Heym before 0.0.53 Authentication Bypass via Telegram Webhook","descriptions":[{"lang":"en","value":"Heym before 0.0.53 fails to verify the X-Telegram-Bot-Api-Secret-Token header on Telegram webhook endpoints when credential_id is absent or secret_token is empty. Remote unauthenticated attackers can post forged Telegram updates to trigger workflows with the owner's configured credentials and execute actions on attacker-supplied input."}],"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"},{"url":"https://www.vulncheck.com/advisories/heym-before-0.0.53-authentication-bypass-via-telegram-webhook","name":"VulnCheck Advisory: Heym before 0.0.53 Authentication Bypass via Telegram Webhook","tags":["third-party-advisory"]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N","attackVector":"NETWORK","attackComplexity":"HIGH","attackRequirements":"PRESENT","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":8.3,"baseSeverity":"HIGH"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"HIGH","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-287","lang":"en","description":"Improper Authentication","type":"CWE"}]}],"providerMetadata":{"shortName":"VulnCheck","orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateUpdated":"2026-09-27T16:33:43.037Z"},"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":"2026-09-28T13:14:15.269471Z","id":"CVE-2026-101050","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-28T13:14:37.706Z"}}]}}}