{"id":"CVE-2026-101050","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-101050","generatedAt":"2026-10-27T22:46:25.278Z","title":"Remote unauthenticated attackers can post forged Telegram updates to trigger workflows with the owner's configured credentials and execute actions on attacker-supplied input.","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.","published":"2026-09-27T17:16:56.000Z","lastModified":"2026-09-28T20:57:50.000Z","status":"Deferred","sourceIdentifier":"disclosure@vulncheck.com","cvss":{"version":"4.0","score":8.3,"severity":"HIGH","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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-287"],"affected":[],"epss":{"score":0.0038,"percentile":0.3174,"date":"2026-10-26","history":[{"date":"2026-09-28","score":0.00297,"percentile":0.2009}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.38%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-09-27T17:16:56.000Z","detail":{"score":"8.3","severity":"HIGH","publishedAt":"2026-09-27T17:16:56.100Z"},"summary":"New CVE, high severity (CVSS 8.3)."}],"references":[{"url":"https://github.com/heymrun/heym/commit/341d1012367cd74f85c617e1c98dd49e3fcb5e83","source":"disclosure@vulncheck.com"},{"url":"https://github.com/heymrun/heym/security/advisories/GHSA-pm6h-x3h5-j38h","source":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/heym-before-0.0.53-authentication-bypass-via-telegram-webhook","source":"disclosure@vulncheck.com"},{"url":"https://github.com/heymrun/heym/security/advisories/GHSA-pm6h-x3h5-j38h","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-101050","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}