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vuln-cve/data/2026/26xxx/CVE-2026-26331.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-26331",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-02-13T16:27:51.810Z",
"datePublished": "2026-02-24T02:23:40.858Z",
"dateUpdated": "2026-02-24T20:08:47.720Z"
},
"containers": {
"cna": {
"title": "yt-dlp: Arbitrary Command Injection when using the `--netrc-cmd` option",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-78",
"lang": "en",
"description": "CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')",
"type": "CWE"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"references": [
{
"name": "https://github.com/yt-dlp/yt-dlp/security/advisories/GHSA-g3gw-q23r-pgqm",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/yt-dlp/yt-dlp/security/advisories/GHSA-g3gw-q23r-pgqm"
},
{
"name": "https://github.com/yt-dlp/yt-dlp/commit/1fbbe29b99dc61375bf6d786f824d9fcf6ea9c1a",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/yt-dlp/yt-dlp/commit/1fbbe29b99dc61375bf6d786f824d9fcf6ea9c1a"
},
{
"name": "https://github.com/yt-dlp/yt-dlp/releases/tag/2026.02.21",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/yt-dlp/yt-dlp/releases/tag/2026.02.21"
}
],
"affected": [
{
"vendor": "yt-dlp",
"product": "yt-dlp",
"versions": [
{
"version": ">= 2023.06.21, < 2026.02.21",
"status": "affected"
}
]
}
],
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2026-02-24T02:23:40.858Z"
},
"descriptions": [
{
"lang": "en",
"value": "yt-dlp is a command-line audio/video downloader. Starting in version 2023.06.21 and prior to version 2026.02.21, when yt-dlp's `--netrc-cmd` command-line option (or `netrc_cmd` Python API parameter) is used, an attacker could achieve arbitrary command injection on the user's system with a maliciously crafted URL. yt-dlp maintainers assume the impact of this vulnerability to be high for anyone who uses `--netrc-cmd` in their command/configuration or `netrc_cmd` in their Python scripts. Even though the maliciously crafted URL itself will look very suspicious to many users, it would be trivial for a maliciously crafted webpage with an inconspicuous URL to covertly exploit this vulnerability via HTTP redirect. Users without `--netrc-cmd` in their arguments or `netrc_cmd` in their scripts are unaffected. No evidence has been found of this exploit being used in the wild. yt-dlp version 2026.02.21 fixes this issue by validating all netrc \"machine\" values and raising an error upon unexpected input. As a workaround, users who are unable to upgrade should avoid using the `--netrc-cmd` command-line option (or `netrc_cmd` Python API parameter), or they should at least not pass a placeholder (`{}`) in their `--netrc-cmd` argument."
}
],
"source": {
"advisory": "GHSA-g3gw-q23r-pgqm",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-02-24T20:08:27.991642Z",
"id": "CVE-2026-26331",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-02-24T20:08:47.720Z"
}
}
]
}
}