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CVE-2026-101050— Heym before 0.0.53 Authentication Bypass via Telegram Webhook

Quick assessment

Affected
heymrun heym
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Heym 在 0.0.53 版本之前，当 缺失或 为空时，未能对 Telegram Webhook 端点中的 头进行验证。远程未认证的攻击者可以伪造 Telegram 更新数据，利用所有者配置的凭据触发工作流，并在攻击者提供的输入上执行相应操作。

CVSS 6.5 · Medium

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-101050

Vulnerability Information
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Vulnerability Title
Heym before 0.0.53 Authentication Bypass via Telegram Webhook
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
heymrun heym 0 ~ 0.0.53 -

II. Public POCs for CVE-2026-101050

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III. Intelligence Information for CVE-2026-101050

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Vendor Advisories for CVE-2026-101050 (1)

Other References for CVE-2026-101050 (2)

Same Patch Batch · heymrun · 2026-09-27 · 10 CVEs total

CVE-2026-100864 8.8 HIGH heym before 0.0.91 Remote Code Execution via Expression Engine
CVE-2026-100865 8.8 HIGH Heym before 0.0.53 Remote Code Execution via eval() Sandbox Escape
CVE-2026-100858 6.8 MEDIUM heym before 0.0.109 Server-Side Request Forgery via Workflow Nodes
CVE-2026-101049 6.5 MEDIUM Heym before 0.0.53 Slack Webhook Signature Verification Bypass
CVE-2026-100859 6.5 MEDIUM Heym before 0.0.106 Credential Exfiltration via URL Override
CVE-2026-100860 5.5 MEDIUM heym before 0.0.105 Authentication Bypass via Redis Node
CVE-2026-100861 5.0 MEDIUM heym before 0.0.105 SSRF via credential-controlled base URLs
CVE-2026-100863 5.0 MEDIUM Heym before 0.0.91 SSRF via image fetching and IPv6 validation
CVE-2026-100862 4.9 MEDIUM heym before 0.0.91 Multiple Secrets Plaintext Storage

IV. Related Vulnerabilities

Same product: heym
Same vendor: heymrun
Same weakness: CWE-287

V. Comments for CVE-2026-101050

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