UBUNTU-CVE-2021-22876

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    UBUNTU-CVE-2021-22876

    Published: 31 Mar 2021Last Modified: 22 Apr 2026
    Upstream:
    CVE-2021-22876

    Summary:

    Details: curl 7.1.1 to and including 7.75.0 is vulnerable to an "Exposure of Private Personal Information to an Unauthorized Actor" by leaking credentials in the HTTP Referer: header. libcurl does not strip off user credentials from the URL when automatically populating the Referer: HTTP request header field in outgoing HTTP requests, and therefore risks leaking sensitive data to the server that is the target of the second HTTP request.

    References: https://ubuntu.com/security/CVE-2021-22876, https://curl.se/docs/CVE-2021-22876.html, https://ubuntu.com/security/notices/USN-4898-1, https://ubuntu.com/security/notices/USN-4903-1, https://www.cve.org/CVERecord?id=CVE-2021-22876

    Affected packages

    Package

    Name: curl

    Purl: pkg:deb/ubuntu/[email protected]+esm7?arch=source&distro=trusty/esm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -7.35.0-1ubuntu2.20+esm7

    Affected versions

    7.32.0-1ubuntu1

    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
    UBUNTU-CVE-2021-22876 | CVE-DB