{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-23837 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-23837 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-23837 is a critical authentication bypass vulnerability in franklioxygen MyTube, published on 19 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-23837 and fix it if it is affected.\n\nWhat it is: CVE-2026-23837 is a critical authentication bypass vulnerability in franklioxygen MyTube, published on 19 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-23837 in the wild and no public exploit code.\n\nAffected product: franklioxygen MyTube. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-23837/ (Markdown: https://insights.sbomify.com/CVE-2026-23837/index.md)","id":"CVE-2026-23837","markdown":"https://insights.sbomify.com/CVE-2026-23837/index.md","name":"CVE-2026-23837","record":{"aliases":["GHSA-cmvj-g69f-8664"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["privilege_escalation","data_modify"],"network_reachable":"yes","non_default_config":true,"product_category":"MyTube video downloader","requires_auth":"none","summary":"Unauthenticated attackers can bypass authentication checks to access and modify application settings and passwords in MyTube instances with login enabled.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"mytube","vendor":"franklioxygen"}],"cvss":{"score":9.8,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-863","name":"Incorrect Authorization"}],"description":"MyTube is a self-hosted downloader and player for several video websites. A vulnerability present in version 1.7.65 and poetntially earlier versions allows unauthenticated users to bypass the mandatory authentication check in the roleBasedAuthMiddleware. By simply not providing an authentication cookie (making req.user undefined), a request is incorrectly passed through to downstream handlers. All users running MyTube with loginEnabled: true are impacted. This flaw allows an attacker to access and modify application settings via /api/settings, change administrative and visitor passwords, and access other protected routes that rely on this specific middleware. The problem is patched in v1.7.66. MyTube maintainers recommend all users upgrade to at least version v1.7.64 immediately to secure their instances. The fix ensures that the middleware explicitly blocks requests if a user is not authenticated, rather than defaulting to next(). Those who cannot upgrade immediately can mitigate risk by restricting network access by usi a firewall or reverse proxy (like Nginx) to restrict access to the /api/ endpoints to trusted IP addresses only or, if they are comfortable editing the source code, manually patch by locating roleBasedAuthMiddleware and ensuring that the logic defaults to an error (401 Unauthorized) when req.user is undefined, instead of calling next().","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"MyTube has an Authorization Bypass vulnerability","id":"CVE-2026-23837","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"Tandoor Recipes module allows SQLite database to be externally accessible with the default settings","id":"CVE-2026-23838"},"packages":[],"prev":{"headline":"HotCRP vulnerable to remote code execution through formulas","id":"CVE-2026-23836"},"products":["MyTube"],"published":"2026-01-19","related":[{"cvss_score":8.9,"headline":"MyTube has an Unauthenticated Admin Privilege Escalation via Passkey Registration","id":"CVE-2026-33890","kev_date_added":null,"published":"2026-03-27"},{"cvss_score":8.7,"headline":"MyTube Allows Unauthorized Database Export by Guest Users","id":"CVE-2026-24139","kev_date_added":null,"published":"2026-01-23"},{"cvss_score":7.7,"headline":"MyTube has Unauthenticated Account Lockout via Shared Login Attempt State","id":"CVE-2026-33935","kev_date_added":null,"published":"2026-03-27"},{"cvss_score":7.4,"headline":"MyTube has an Improper Access Control that Allows Complete Application Takeover","id":"CVE-2026-33735","kev_date_added":null,"published":"2026-03-27"},{"cvss_score":6.5,"headline":"MyTube has Rate Limiting Bypass via X-Forwarded-For Header Spoofing","id":"CVE-2026-23848","kev_date_added":null,"published":"2026-01-19"},{"cvss_score":2.7,"headline":"MyTube has Mass Assignment via Settings Management","id":"CVE-2026-24140","kev_date_added":null,"published":"2026-01-23"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-01-20","vendors":["franklioxygen"]},"summary":"Unauthenticated attackers can bypass authentication checks to access and modify application settings and passwords in MyTube instances with login enabled.","url":"https://insights.sbomify.com/CVE-2026-23837/"}