UBUNTU-CVE-2026-18924

    Dashboard / Vulnerabilities / UBUNTU-CVE-2026-18924

    UBUNTU-CVE-2026-18924

    Published: 6 Sept 2026Last Modified: 26 Sept 2026
    Upstream:
    CVE-2026-18924
    Aliases:
    USN-8820-1

    Summary:

    Details: A flaw in libcurl's handling of HTTP/2 Server Push streams, when the parent handle is set to share connections with other handles, can lead to use-after-free in the cleanup process.

    References: https://ubuntu.com/security/CVE-2026-18924, https://www.cve.org/CVERecord?id=CVE-2026-18924, https://curl.se/docs/CVE-2026-18924.html, https://github.com/curl/curl/commit/90325ff0444cbdff368bda5d26d6, https://ubuntu.com/security/notices/USN-8820-1

    Affected packages

    Package

    Name: curl

    Purl: pkg:deb/ubuntu/curl?arch=source&distro=esm-infra-legacy%2Fxenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -7.47.0-1ubuntu2.19+esm20

    Affected versions

    7.43.0-1ubuntu2

    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-2026-18924 | CVE-DB