CVE-2026-109966

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Source
https://cve.org/CVERecord?id=CVE-2026-109966
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-109966.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-109966
Published
2026-10-13T14:00:17Z
Modified
2026-10-15T02:47:27Z
Severity
  • 6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
yt-dlp-web-ui through 4.0.0 Argument Injection via Service.Formats JSON-RPC Method
Details

yt-dlp-web-ui through 4.0.0 contains an argument injection vulnerability that allows unauthenticated remote attackers to inject yt-dlp options by supplying a dash-prefixed url parameter to the Service.Formats JSON-RPC method. Attackers can send values like --load-info-json via /rpc/http or /rpc/ws to make yt-dlp load attacker-chosen JSON files from the server filesystem, with contents reflected in responses.

Database specific 
{
    "cna_assigner":  "VulnCheck",
    "cwe_ids":  [
        "CWE-88"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/109xxx/CVE-2026-109966.json"
}
References

Affected packages

Git / github.com/marcopiovanello/yt-dlp-web-ui

Affected ranges

Type
GIT
Repo
https://github.com/marcopiovanello/yt-dlp-web-ui
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
143cc28a97fb8e21c84c9436778fff480e2fa36b
Database specific
Show details 
{
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "last_affected":  "4.0.0"
        },
        {
            "fixed":  "4.0.0"
        }
    ],
    "source":  [
        "AFFECTED_FIELD",
        "DESCRIPTION"
    ]
}

Affected versions

v.*
v.2.0.9
v.3.0.4
v.3.1.0
v2.*
v2.0.0
v2.0.1
v2.0.2
v2.0.3
v2.0.4
v2.0.5
v2.0.6
v2.0.7
v2.0.8
v2.10.0
v3.*
v3.0.0
v3.0.1
v3.0.2
v3.0.3
v3.0.5
v3.0.6
v3.0.7
v3.0.8
v3.0.9
v3.1.1
v3.1.2
v3.2.0
v3.2.0-fix
v3.2.1
v3.2.2
v3.2.3
v3.2.4
v3.2.5
v3.2.6

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-109966.json"