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
EPSS
Percentile
13.2%
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.
[
{
"product": "yt-dlp",
"vendor": "yt-dlp",
"versions": [
{
"lessThan": "2024.07.01",
"status": "affected",
"versionType": "date",
"version": "< 2024.07.01"
}
]
},
{
"defaultStatus": "unaffected",
"product": "youtube-dl",
"repo": "https://github.com/ytdl-org/youtube-dl",
"vendor": "ytdl-org",
"versions": [
{
"lessThanOrEqual": "2021.12.17",
"status": "affected",
"version": ">= 2015.01.25",
"versionType": "date"
},
{
"changes": [
{
"at": "d42a222",
"status": "unaffected"
}
],
"lessThan": "2024-07-03",
"status": "affected",
"version": "nightly",
"versionType": "date"
}
]
}
]
github.com/dirkf/youtube-dl/security/advisories/GHSA-22fp-mf44-f2mq
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
github.com/ytdl-org/youtube-dl/commit/d42a222ed541b96649396ef00e19552aef0f09ec
github.com/ytdl-org/youtube-dl/pull/32830
securitylab.github.com/advisories/GHSL-2024-089_youtube-dl/
securitylab.github.com/advisories/GHSL-2024-090_yt-dlp