CVE-2026-101050

Medium

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.

SeverityMedium

CVSS6.5

Exploit probability—

ProductHeym

PublishedSep 27, 2026

First seenSep 27, 2026

Weakness typeCWE-287Improper authentication

How to fix

Update

heymrun heym0.0.53 or later

Patches

github.com/heymrun/heym/commit/341d1012367cd74f85c617e1c98dd49e3fcb5e83

Vendor advisories

github.com/heymrun/heym/security/advisories/GHSA-pm6h-x3h5-j38h

Affected products

Product	Affected versions	Fixed in
heymrun heym	v < 0.0.53	0.0.53

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