{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-109966 exists.","fix":"No fix has been published for CVE-2026-109966 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-109966 is a medium-severity command injection vulnerability in marcopiovanello yt-dlp-web-ui, published on 13 Oct 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-2026-109966 and fix it if it is affected.\n\nWhat it is: CVE-2026-109966 is a medium-severity command injection vulnerability in marcopiovanello yt-dlp-web-ui, published on 13 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-109966 exists.\n\nAffected product: marcopiovanello yt-dlp-web-ui. 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-2026-109966/ (Markdown: https://insights.sbomify.com/CVE-2026-109966/index.md)","id":"CVE-2026-109966","markdown":"https://insights.sbomify.com/CVE-2026-109966/index.md","name":"CVE-2026-109966","record":{"aliases":["GHSA-g8v9-4g6m-3vc9"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["data_read","code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"yt-dlp web UI","requires_auth":"none","summary":"Unauthenticated attackers can inject yt-dlp options to read arbitrary server files or potentially execute code via the JSON-RPC interface.","user_interaction":"not_required","vuln_class":"command_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":6.9,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-88","name":"Improper Neutralization of Argument Delimiters in a Command"}],"description":"yt-dlp-web-ui through 4.0.0 contains an argument injection vulnerability that allows unauthenticated remote attackers to inject yt-dlp options by supplying a dash-prefixed url parameter to the Service.Formats JSON-RPC method. Attackers can send values like --load-info-json via /rpc/http or /rpc/ws to make yt-dlp load attacker-chosen JSON files from the server filesystem, with contents reflected in responses.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"yt-dlp-web-ui through 4.0.0 Argument Injection via Service.Formats JSON-RPC Method","id":"CVE-2026-109966","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"command_injection","year":"2026"},"n_packages":0,"n_references":4,"next":{"headline":"yt-dlp-web-ui through 4.0.0 NULL Pointer Dereference DoS via Service.Formats","id":"CVE-2026-109967"},"packages":[],"prev":{"headline":"Serena before 2.0.0 Symlink Following in File Tools Allows Access Outside Project Root","id":"CVE-2026-109965"},"products":["yt-dlp-web-ui"],"published":"2026-10-13","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-26","vendors":["marcopiovanello"]},"summary":"Unauthenticated attackers can inject yt-dlp options to read arbitrary server files or potentially execute code via the JSON-RPC interface.","url":"https://insights.sbomify.com/CVE-2026-109966/"}