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: 2026-09-27
Score: 8.3 High
EPSS: < 1% Very Low
KEV: No
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Mon, 28 Sep 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Sun, 27 Sep 2026 18:00:00 +0000

Type Values Removed Values Added
First Time appeared Heymrun
Heymrun heym
Vendors & Products Heymrun
Heymrun heym

Sun, 27 Sep 2026 16:45:00 +0000

Type Values Removed Values Added
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.
Title Heym before 0.0.53 Authentication Bypass via Telegram Webhook
Weaknesses CWE-287
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N'}

cvssV4_0

{'score': 8.3, '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'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-09-28T13:14:37.706Z

Reserved: 2026-09-27T15:48:49.472Z

Link: CVE-2026-101050

cve-icon Vulnrichment

Updated: 2026-09-28T13:14:33.662Z

cve-icon NVD

Status : Deferred

Published: 2026-09-27T17:16:56.100

Modified: 2026-09-28T20:57:50.143

Link: CVE-2026-101050

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-27T17:45:12Z

Weaknesses