{"items":[{"id":"NVI-00016137","kind":"vulnerability","title":"yt-dlp: Dangerous file type creation via insufficient filename sanitization (Bypass of CVE-2024-38519)","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-c6mh-fpjc-4pr3","CVE-2026-50023"],"plain_summary":"GitHub lists this reviewed advisory for yt-dlp. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-675ee0255a9850321791feeff57553ba"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-07-20T13:45:54.000Z","value":"8.3 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-2dc3a747ce2313cc14588bf4973db36c"},{"kind":"CVSS","as_of":"2026-06-26T20:12:25.540Z","value":"8.3 HIGH (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-675ee0255a9850321791feeff57553ba"},{"kind":"CVSS","as_of":"2026-06-26T20:12:25.540Z","value":"9.6 CRITICAL (3.1)","meaning":"nvd@nist.gov severity; no combined Null risk score.","source_id":"sr-675ee0255a9850321791feeff57553ba"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-2dc3a747ce2313cc14588bf4973db36c","url":"https://github.com/advisories/GHSA-c6mh-fpjc-4pr3","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-c6mh-fpjc-4pr3","publisher":"GitHub Advisory Database","observed_at":"2026-11-04T02:49:06.528Z"},{"id":"sr-675ee0255a9850321791feeff57553ba","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-50023","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-50023","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-08T01:47:50.916Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-2dc3a747ce2313cc14588bf4973db36c"],"technology":"yt-dlp","known_exclusions":[],"conditions_summary":"### Summary\nA vulnerability exists in yt-dlp that allows a remote attacker to write arbitrary OS-shortcut files (such as `.desktop`, `.url`, `.webloc`) to the user's filesystem, bypassing the remediation for `CVE-2024-38519`. \n\n### Details\nThe fix for `CVE-2024-38519` enforced an allowlist for file extensions, in order to prevent writing files with unsafe extensions (such as `.exe` or `.sh`) during file downloads. However, this allowlist explicitly included the unsafe extensions `.desktop`, `.url`, and `.webloc` so that the functionality of the `--write-link` option (and its variants) could be preserved. These allowlist inclusions can be exploited by an attacker to write malicious OS-shortcut files in the context of a media or subtitles download.\n\nNumerous yt-dlp extractors derive the downloaded media or subtitles file extension from a potentially attacker-controlled source. An attacker could craft an m3u8 file that contains an `EXT-X-MEDIA:TYPE=SUBTITLES` tag with a malicious URI (e.g., `URI=\"http://attacker/x.desktop\"`), which would result in yt-dlp writing the attacker-controlled content to a file with a `.desktop` extension if the user had passed the `--write-subs` option.\n\nWri","public_affected_ranges":["< 2026.06.09"]}],"null_published_at":"2026-11-08T19:53:44.064Z","source_updated_at":"2026-07-20T13:45:54.000Z","source_disclosed_at":"2026-06-16T20:59:42.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-11-04T02:49:06.528Z"},{"id":"NVI-00016137","kind":"vulnerability","title":"yt-dlp: Dangerous file type creation via insufficient filename sanitization (Bypass of CVE-2024-38519)","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-c6mh-fpjc-4pr3","CVE-2026-50023"],"plain_summary":"GitHub lists this reviewed advisory for yt-dlp. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-2dc3a747ce2313cc14588bf4973db36c"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-07-20T13:45:54.000Z","value":"8.3 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-2dc3a747ce2313cc14588bf4973db36c"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-2dc3a747ce2313cc14588bf4973db36c","url":"https://github.com/advisories/GHSA-c6mh-fpjc-4pr3","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-c6mh-fpjc-4pr3","publisher":"GitHub Advisory Database","observed_at":"2026-11-04T02:49:06.528Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-2dc3a747ce2313cc14588bf4973db36c"],"technology":"yt-dlp","known_exclusions":[],"conditions_summary":"### Summary\nA vulnerability exists in yt-dlp that allows a remote attacker to write arbitrary OS-shortcut files (such as `.desktop`, `.url`, `.webloc`) to the user's filesystem, bypassing the remediation for `CVE-2024-38519`. \n\n### Details\nThe fix for `CVE-2024-38519` enforced an allowlist for file extensions, in order to prevent writing files with unsafe extensions (such as `.exe` or `.sh`) during file downloads. However, this allowlist explicitly included the unsafe extensions `.desktop`, `.url`, and `.webloc` so that the functionality of the `--write-link` option (and its variants) could be preserved. These allowlist inclusions can be exploited by an attacker to write malicious OS-shortcut files in the context of a media or subtitles download.\n\nNumerous yt-dlp extractors derive the downloaded media or subtitles file extension from a potentially attacker-controlled source. An attacker could craft an m3u8 file that contains an `EXT-X-MEDIA:TYPE=SUBTITLES` tag with a malicious URI (e.g., `URI=\"http://attacker/x.desktop\"`), which would result in yt-dlp writing the attacker-controlled content to a file with a `.desktop` extension if the user had passed the `--write-subs` option.\n\nWri","public_affected_ranges":["< 2026.06.09"]}],"null_published_at":"2026-11-04T10:04:27.897Z","source_updated_at":"2026-07-20T13:45:54.000Z","source_disclosed_at":"2026-06-16T20:59:42.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-11-04T02:49:06.528Z"}],"next_cursor":null,"snapshot_revision":"42594"}