PYSEC-2026-2066 yt-dlp: `--exec` command injection when using `%q` in yt-dlp on Windows (Bypass of CVE-2023-40581)

Summary The patch that addressed CVE-2023-40581 attempted to prevent RCE when using --exec with %q by replacing double quotes with two double quotes. However, this escaping is not sufficient, and still allows expansion of environment variables. Support for output template expansion in --exec, alo...

yt-dlp: `--exec` command injection when using `%q` in yt-dlp on Windows (Bypass of CVE-2023-40581)

SummaryThe patch that addressed CVE-2023-40581 attempted to prevent RCE when using --exec with %q by replacing double quotes with two double quotes.However, this escaping is not sufficient, and still allows expansion of environment variables.Support for output template expansion in --exec, along...

GHSA-HJQ6-52GW-2G7P yt-dlp: `--exec` command injection when using `%q` in yt-dlp on Windows (Bypass of CVE-2023-40581)

Summary The patch that addressed CVE-2023-40581 attempted to prevent RCE when using --exec with %q by replacing double quotes with two double quotes. However, this escaping is not sufficient, and still allows expansion of environment variables. Support for output template expansion in --exec, alo...

CVE-2024-22423

yt-dlp is a youtube-dl fork with additional features and fixes. The patch that addressed CVE-2023-40581 attempted to prevent RCE when using --exec with %q by replacing double quotes with two double quotes. However, this escaping is not sufficient, and still allows expansion of environment...

CVE-2024-22423

yt-dlp is a youtube-dl fork with additional features and fixes. The patch that addressed CVE-2023-40581 attempted to prevent RCE when using --exec with %q by replacing double quotes with two double quotes. However, this escaping is not sufficient, and still allows expansion of environment...

CVE-2024-22423

yt-dlp is a youtube-dl fork with additional features and fixes. The patch that addressed CVE-2023-40581 attempted to prevent RCE when using --exec with %q by replacing double quotes with two double quotes. However, this escaping is not sufficient, and still allows expansion of environment...

CVE-2023-40581

creationtimestamp| type| source ---|---|--- 2023-09-25 22:39:32+00:00| seen| https://t.me/cibsecurity/71010 2026-01-05 22:32:20+00:00| seen| https://bsky.app/profile/euvd-bot.bsky.social/post/3mbpikwx7aw27...

CVE-2023-40581

CVE-2023-40581 concerns yt-dlp on Windows, where the --exec flag can perform shell commands with output template expansion. The underlying issue is that the escaping for cmd.exe is insufficient, allowing remote code execution when supplied data contains crafted metadata. The vulnerability is tied...

GHSA-42H4-V29R-42QG yt-dlp on Windows vulnerable to `--exec` command injection when using `%q`

Impact yt-dlp allows the user to provide shell commands to be executed at various stages in its download process through the --exec flag. This flag allows output template expansion in its argument, so that video metadata values may be used in the shell commands. The metadata fields can be combine...

yt-dlp on Windows vulnerable to `--exec` command injection when using `%q`

Impact yt-dlp allows the user to provide shell commands to be executed at various stages in its download process through the --exec flag. This flag allows output template expansion in its argument, so that video metadata values may be used in the shell commands. The metadata fields can be combine...