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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.

PUBLISHED Reserved 2026-03-24 | Published 2026-03-27 | Updated 2026-03-27 | Assigner GitHub_M




HIGH: 8.9CVSS: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

Problem types

CWE-284: Improper Access Control

Product status

< 1.8.71
affected

References

github.com/...MyTube/security/advisories/GHSA-378w-xh68-qrc8 exploit

github.com/...MyTube/security/advisories/GHSA-378w-xh68-qrc8

github.com/...ommit/d6c1275a7ff7ffd3d51b53c333237f4d572580ac

cve.org (CVE-2026-33890)

nvd.nist.gov (CVE-2026-33890)

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