CVE-2026-33890 | franklioxygen MyTube up to 1.8.70 access control (GHSA-378w-xh68-qrc8 / EUVD-2026-16519)

VDB-353805 · CVE-2026-33890 · GHSA-378W-XH68-QRC8 FRANKLIOXYGEN MYTUBE UP TO 1.8.70 ACCESS CONTROL HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 7.0 $0-$5k 3.96+ Summaryinfo A vulnerability marked as critical has been reported in franklioxygen MyTube up to 1.8.70. Affected by this issue is some unknown functionality. Performing a manipulation results in access control. This vulnerability is known as CVE-2026-33890. Remote exploitation of the attack is possible. No exploit is available. It is suggested to upgrade the affected component. Detailsinfo A vulnerability was found in franklioxygen MyTube up to 1.8.70. It has been classified as critical. This affects an unknown code. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE 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 advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-33890 since 03/24/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1068 for this issue. Upgrading to version 1.8.71 eliminates this vulnerability. Applying the patch d6c1275a7ff7ffd3d51b53c333237f4d572580ac is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version. The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-16519). Productinfo Vendor franklioxygen Name MyTube Version 1.8.0 1.8.1 1.8.2 1.8.3 1.8.4 1.8.5 1.8.6 1.8.7 1.8.8 1.8.9 1.8.10 1.8.11 1.8.12 1.8.13 1.8.14 1.8.15 1.8.16 1.8.17 1.8.18 1.8.19 1.8.20 1.8.21 1.8.22 1.8.23 1.8.24 1.8.25 1.8.26 1.8.27 1.8.28 1.8.29 1.8.30 1.8.31 1.8.32 1.8.33 1.8.34 1.8.35 1.8.36 1.8.37 1.8.38 1.8.39 1.8.40 1.8.41 1.8.42 1.8.43 1.8.44 1.8.45 1.8.46 1.8.47 1.8.48 1.8.49 1.8.50 1.8.51 1.8.52 1.8.53 1.8.54 1.8.55 1.8.56 1.8.57 1.8.58 1.8.59 1.8.60 1.8.61 1.8.62 1.8.63 1.8.64 1.8.65 1.8.66 1.8.67 1.8.68 1.8.69 1.8.70 License open-source Website Product: https://github.com/franklioxygen/MyTube/ CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA CVSS-B Score: 🔒 CNA CVSS-BT Score: 🔒 CNA Vector: 🔒 CVSSv3info VulDB Meta Base Score: 7.3 VulDB Meta Temp Score: 7.0 VulDB Base Score: 7.3 VulDB Temp Score: 7.0 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Access control CWE: CWE-284 / CWE-266 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: MyTube 1.8.71 Patch: d6c1275a7ff7ffd3d51b53c333237f4d572580ac Timelineinfo 03/24/2026 CVE reserved 03/27/2026 +3 days Advisory disclosed 03/27/2026 +0 days VulDB entry created 03/27/2026 +0 days VulDB entry last update Sourcesinfo Product: github.com Advisory: GHSA-378w-xh68-qrc8 Status: Confirmed CVE: CVE-2026-33890 (🔒) GCVE (CVE): GCVE-0-2026-33890 GCVE (VulDB): GCVE-100-353805 EUVD: 🔒 Entryinfo Created: 03/27/2026 07:07 Updated: 03/27/2026 07:44 Changes: 03/27/2026 07:07 (69), 03/27/2026 07:44 (1) Complete: 🔍 Cache ID: 99:8D2:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸