High 8.9Published Mar 26, 2026

CVE-2026-33890MyTube has an Unauthenticated Admin Privilege Escalation via Passkey Registration

Updated under an hour ago (Oct 27, 2026, 8:30 AM ET)

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It affects franklioxygen MyTube. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for franklioxygen MyTube

Exploited in the last 30 days

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.

CVSS: 8.9 HIGH (v4.0, CNA)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
Weakness (CWE): CWE-284
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Mar 27, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

franklioxygen MyTube franklioxygen:mytube (from the name)	before 1.8.71	CNA record
franklioxygen mytube franklioxygen:mytube	before 1.8.71	NVD

References

References

https://github.com/franklioxygen/MyTube/security/advisories/GHSA-378w-xh68-qrc8	x-refsource-confirm, exploit, vendor-advisory
https://github.com/franklioxygen/MyTube/commit/d6c1275a7ff7ffd3d51b53c333237f4d572580ac	x-refsource-misc, patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.