CVE-2026-101050CWE-287

CVE-2026-101050

Medium · published September 27, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
21.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N
CVSS v4.0
8.3 · 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
EPSS
0.00297 · 21.1th percentile
Weakness
CWE-287 · Improper Authentication
Published
2026-09-27T21:16Z
References (4)
https://github.com/heymrun/heym/commit/341d1012367cd74f85c617e1c98dd49e3fcb5e83 · [email protected]https://github.com/heymrun/heym/security/advisories/GHSA-pm6h-x3h5-j38h · [email protected]https://www.vulncheck.com/advisories/heym-before-0.0.53-authentication-bypass-via-telegram-webhook · [email protected]https://github.com/heymrun/heym/security/advisories/GHSA-pm6h-x3h5-j38h · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 29 SEP 03:24Z
    EPSS moved — → 0%
    epss
  • 27 SEP 16:28Z
    Heym before 0.0.53 Authentication Bypass via Telegram Webhook
    cvelistv5