CVE-2023-46121

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    CVE-2023-46121

    Published: 14 Nov 2023Last Modified: 28 Oct 2026

    Summary: Generic Extractor MITM Vulnerability in yt-dlp

    Details: yt-dlp is a youtube-dl fork with additional features and fixes. The Generic Extractor in yt-dlp is vulnerable to an attacker setting an arbitrary proxy for a request to an arbitrary url, allowing the attacker to MITM the request made from yt-dlp's HTTP session. This could lead to cookie exfiltration in some cases. Version 2023.11.14 removed the ability to smuggle `http_headers` to the Generic extractor, as well as other extractors that use the same pattern. Users are advised to upgrade. Users unable to upgrade should disable the Ggneric extractor (or only pass trusted sites with trusted content) and ake caution when using `--no-check-certificate`.

    References: https://github.com/yt-dlp/yt-dlp/releases/tag/2023.11.14, https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/46xxx/CVE-2023-46121.json, https://github.com/yt-dlp/yt-dlp/security/advisories/GHSA-3ch3-jhc6-5r8x, https://nvd.nist.gov/vuln/detail/CVE-2023-46121, https://github.com/yt-dlp/yt-dlp/commit/f04b5bedad7b281bee9814686bba1762bae092eb

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 57fb88093ea08108f3118b69bc56353625b34c5c
    Fixed -5d3a3cd4934853126a5d6b721dbec6946c9cd8ce

    Affected versions

    2023.10.13
    2023.10.07

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2023-46121 | CVE-DB