CVE-2026-33890CWE-284

MyTube has an Unauthenticated Admin Privilege Escalation via Passkey Registration

High · published March 27, 2026

CVSS v4.0
8.9
EPSS
1%
Percentile
52.8
In the wild
Unconfirmed
What it is

MyTube is a self-hosted downloader and player for several video websites Prior to version 1.8.71, an unauthenticated attacker can register an arbitrary passkey and subsequently authenticate with it to obtain a full admin session. The application exposes passkey registration endpoints without requiring prior authentication. Any successfully authenticated passkey is automatically granted an administrator token, allowing full administrative access to the application. This enables a complete compromise of the application without requiring any existing credentials. Version 1.8.71 fixes the issue.

The record
Technical detail
CVSS v4.0
8.9 · HIGH
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
EPSS
0.00704 · 52.8th percentile
Weakness
CWE-284 · Improper Access Control
Published
2026-03-27T00:38Z
EPSS history
Timeline
  • 27 MAR 00:38Z
    MyTube has an Unauthenticated Admin Privilege Escalation via Passkey Registration
    cvelistv5