CVE-2026-71212 json
xidown - Argument Injection via Unterminated yt-dlp Command Line Construction
published 2026-08-05 3 mo ago modified 2026-10-24 15 d ago also EUVD-2026-53209
- cvss
- 4.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 5%
- public exploits
- 0
- none known
Summary
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.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 3 mo ago
Exploit prediction
0.16% chance of exploitation in the next 30 days, higher than 5% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.4 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L |
Affected products
- indravoyager xidown
Classification
- Weakness
-
- CWE-88 Improper Neutralization of Argument Delimiters in a Command
References
-
cwe.mitre.org
/data/definitions/88.html
third-party-advisory
Sources
- CVE List CVE-2026-71212
- NVD CVE-2026-71212
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.