Heym before 0.0.53 Authentication Bypass via Telegram Webhook

{
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "cveMetadata": {
    "cveId": "CVE-2026-101050",
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "dateUpdated": "2026-09-27T16:33:43.037Z",
    "dateReserved": "2026-09-27T15:48:49.472Z",
    "datePublished": "2026-09-27T16:28:28.766Z",
    "state": "PUBLISHED"
  },
  "containers": {
    "cna": {
      "providerMetadata": {
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck",
        "dateUpdated": "2026-09-27T16:33:43.037Z"
      },
      "datePublic": "2026-06-26T00:00:00.000Z",
      "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",
              "versionType": "semver",
              "lessThan": "0.0.53"
            },
            {
              "version": "0.0.53",
              "status": "unaffected",
              "versionType": "semver"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "lang": "en",
              "description": "Improper Authentication",
              "cweId": "CWE-287",
              "type": "CWE"
            }
          ]
        }
      ],
      "references": [
        {
          "url": "https://github.com/heymrun/heym/security/advisories/GHSA-pm6h-x3h5-j38h",
          "name": "GitHub Security Advisory (GHSA-pm6h-x3h5-j38h)",
          "tags": [
            "vendor-advisory"
          ]
        },
        {
          "url": "https://github.com/heymrun/heym/commit/341d1012367cd74f85c617e1c98dd49e3fcb5e83",
          "name": "Patch Commit",
          "tags": [
            "patch"
          ]
        },
        {
          "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"
        },
        {
          "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"
          }
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "okcomputerfan",
          "type": "finder"
        },
        {
          "lang": "en",
          "value": "mbakgun",
          "type": "remediation developer"
        }
      ]
    }
  }
}