CVE-2026-33890

| EUVD-2026-16519 HIGH
2026-03-27 GitHub_M
8.9
CVSS 4.0
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CVSS 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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

3
EUVD ID Assigned
Mar 27, 2026 - 01:15 euvd
EUVD-2026-16519
Analysis Generated
Mar 27, 2026 - 01:15 vuln.today
CVE Published
Mar 27, 2026 - 00:38 nvd
HIGH 8.9

Description

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.

Analysis

MyTube versions prior to 1.8.71 allow unauthenticated remote attackers to register arbitrary passkeys and obtain full administrator access without any existing credentials. The vulnerability stems from exposed passkey registration endpoints that lack authentication checks and automatically grant admin tokens to any successfully registered passkey, enabling complete application compromise. …

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Remediation

Within 7 days: Identify all affected systems and apply vendor patches promptly. Monitor vendor channels for patch availability.

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Priority Score

45
Low Medium High Critical
KEV: 0
EPSS: +0.1
CVSS: +44
POC: 0

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CVE-2026-33890 vulnerability details – vuln.today

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