ubuntu-cve-2026-71212
Vulnerability from osv_ubuntu
Published
2026-08-05 08:16
Modified
2026-08-24 18:57
Summary
Details
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.
Severity
4.4 (Medium)
N/A (UNKNOWN)
References
{
"affected": [
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{
"binary_name": "libavfilter9",
"binary_version": "7:6.1.1-3ubuntu5+esm11"
},
{
"binary_name": "libavformat-extra",
"binary_version": "7:6.1.1-3ubuntu5+esm11"
},
{
"binary_name": "libavformat-extra60",
"binary_version": "7:6.1.1-3ubuntu5+esm11"
},
{
"binary_name": "libavformat60",
"binary_version": "7:6.1.1-3ubuntu5+esm11"
},
{
"binary_name": "libavutil58",
"binary_version": "7:6.1.1-3ubuntu5+esm11"
},
{
"binary_name": "libpostproc57",
"binary_version": "7:6.1.1-3ubuntu5+esm11"
},
{
"binary_name": "libswresample4",
"binary_version": "7:6.1.1-3ubuntu5+esm11"
},
{
"binary_name": "libswscale7",
"binary_version": "7:6.1.1-3ubuntu5+esm11"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:24.04:LTS",
"name": "ffmpeg",
"purl": "pkg:deb/ubuntu/ffmpeg@7:6.1.1-3ubuntu5+esm11?arch=source\u0026distro=esm-apps/noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"7:6.0-6ubuntu1",
"7:6.0-9ubuntu1",
"7:6.1-2ubuntu1",
"7:6.1-3ubuntu1",
"7:6.1-4ubuntu1",
"7:6.1-5ubuntu1",
"7:6.1.1-1ubuntu1",
"7:6.1.1-3ubuntu1",
"7:6.1.1-3ubuntu5",
"7:6.1.1-3ubuntu5+esm1",
"7:6.1.1-3ubuntu5+esm2",
"7:6.1.1-3ubuntu5+esm3",
"7:6.1.1-3ubuntu5+esm4",
"7:6.1.1-3ubuntu5+esm5",
"7:6.1.1-3ubuntu5+esm6",
"7:6.1.1-3ubuntu5+esm7",
"7:6.1.1-3ubuntu5+esm8",
"7:6.1.1-3ubuntu5+esm10",
"7:6.1.1-3ubuntu5+esm11"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "yt-dlp",
"binary_version": "2026.03.17-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:26.04:LTS",
"name": "yt-dlp",
"purl": "pkg:deb/ubuntu/yt-dlp@2026.03.17-1?arch=source\u0026distro=resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2025.09.23-1",
"2025.10.22-1",
"2025.11.12-1",
"2025.12.08-1",
"2026.01.31-1",
"2026.03.17-1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "ffmpeg",
"binary_version": "7:8.0.1-3ubuntu2+esm1"
},
{
"binary_name": "libavcodec-extra",
"binary_version": "7:8.0.1-3ubuntu2+esm1"
},
{
"binary_name": "libavcodec-extra62",
"binary_version": "7:8.0.1-3ubuntu2+esm1"
},
{
"binary_name": "libavcodec62",
"binary_version": "7:8.0.1-3ubuntu2+esm1"
},
{
"binary_name": "libavdevice62",
"binary_version": "7:8.0.1-3ubuntu2+esm1"
},
{
"binary_name": "libavfilter-extra",
"binary_version": "7:8.0.1-3ubuntu2+esm1"
},
{
"binary_name": "libavfilter-extra11",
"binary_version": "7:8.0.1-3ubuntu2+esm1"
},
{
"binary_name": "libavfilter11",
"binary_version": "7:8.0.1-3ubuntu2+esm1"
},
{
"binary_name": "libavformat-extra",
"binary_version": "7:8.0.1-3ubuntu2+esm1"
},
{
"binary_name": "libavformat-extra62",
"binary_version": "7:8.0.1-3ubuntu2+esm1"
},
{
"binary_name": "libavformat62",
"binary_version": "7:8.0.1-3ubuntu2+esm1"
},
{
"binary_name": "libavutil60",
"binary_version": "7:8.0.1-3ubuntu2+esm1"
},
{
"binary_name": "libswresample6",
"binary_version": "7:8.0.1-3ubuntu2+esm1"
},
{
"binary_name": "libswscale9",
"binary_version": "7:8.0.1-3ubuntu2+esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:26.04:LTS",
"name": "ffmpeg",
"purl": "pkg:deb/ubuntu/ffmpeg@7:8.0.1-3ubuntu2+esm1?arch=source\u0026distro=esm-apps/resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"7:7.1.1-1ubuntu4",
"7:7.1.2-1ubuntu3",
"7:7.1.2-1ubuntu4",
"7:7.1.3-1ubuntu1",
"7:8.0.1-2ubuntu1",
"7:8.0.1-3ubuntu1",
"7:8.0.1-3ubuntu2",
"7:8.0.1-3ubuntu2+esm1"
]
}
],
"aliases": [],
"details": "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 \u0027--\u0027 end-of-options marker and no scheme validation anywhere in the codebase.",
"id": "UBUNTU-CVE-2026-71212",
"modified": "2026-08-24T18:57:31Z",
"published": "2026-08-05T08:16:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-71212"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-71212"
},
{
"type": "REPORT",
"url": "https://cwe.mitre.org/data/definitions/88.html"
}
],
"related": [],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2026-71212"
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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