Vulnerability · Published Aug 5, 2026 · Assigned by TuranSec
CVE-2026-71212xidown - Argument Injection via Unterminated yt-dlp Command Line Construction
Medium 4.4
In plain English
A medium-severity argument injection in xidown from indravoyager. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 5% of all known vulnerabilities).
Severity (CVSS 3.1)4.4Medium
Exploit odds (30 days)0.2%top 95.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
xidown (a yt-dlp/ffmpeg GUI wrapper) builds its yt-dlp command-line invocation (xidown/core/scanner.py and downloader.py) by appending the user-provided or scanned URL as a bare trailing positional argument, with no '--' end-of-options marker and no scheme validation anywhere in the codebase.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu:26.10 | ffmpeg | no fix listed | UBUNTU-CVE-2026-71212 |
| Ubuntu:22.04:LTS | yt-dlp | no fix listed | UBUNTU-CVE-2026-71212 |
| Ubuntu:24.04:LTS | yt-dlp | no fix listed | UBUNTU-CVE-2026-71212 |
| Ubuntu:26.04:LTS | yt-dlp | no fix listed | UBUNTU-CVE-2026-71212 |
| Ubuntu:26.10 | yt-dlp | no fix listed | UBUNTU-CVE-2026-71212 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| indravoyager | xidown | 0 – through 1.25.1.19 |
Weakness: CWE-88 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L
References
- https://cwe.mitre.org/data/definitions/88.html third-party-advisory