CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AI Score
Confidence
High
yt-dlp
and youtube-dl
are command-line audio/video downloaders. Prior to the fixed versions, yt-dlp
and youtube-dl
do not limit the extensions of downloaded files, which could lead to arbitrary filenames being created in the download folder (and path traversal on Windows). Since yt-dlp
and youtube-dl
also read config from the working directory (and on Windows executables will be executed from the yt-dlp
or youtube-dl
directory), this could lead to arbitrary code being executed. yt-dlp
version 2024.07.01 fixes this issue by whitelisting the allowed extensions. youtube-dl
fixes this issue in commit d42a222
on the master
branch and in nightly builds tagged 2024-07-03 or later. This might mean some very uncommon extensions might not get downloaded, however it will also limit the possible exploitation surface. In addition to upgrading, have .%(ext)s
at the end of the output template and make sure the user trusts the websites that they are downloading from. Also, make sure to never download to a directory within PATH or other sensitive locations like one’s user directory, system32
, or other binaries locations. For users who are not able to upgrade, keep the default output template (-o "%(title)s [%(id)s].%(ext)s
); make sure the extension of the media to download is a common video/audio/sub/… one; try to avoid the generic extractor; and/or use --ignore-config --config-location ...
to not load config from common locations.
github.com/yt-dlp/yt-dlp/commit/5ce582448ececb8d9c30c8c31f58330090ced03a
github.com/yt-dlp/yt-dlp/releases/tag/2024.07.01
github.com/yt-dlp/yt-dlp/security/advisories/GHSA-79w7-vh3h-8g4j
securitylab.github.com/advisories/GHSL-2024-090_yt-dlp
ubuntu.com/security/CVE-2024-38519
www.cve.org/CVERecord?id=CVE-2024-38519