UBUNTU-CVE-2026-120647

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    UBUNTU-CVE-2026-120647

    Published: 4 Nov 2026Last Modified: 5 Nov 2026
    Upstream:
    CVE-2026-120647

    Summary:

    Details: CGI versions before 5.00 for Perl allow Content-Disposition parameter injection via unescaped double quotes in the header attachment filename. header(-attachment => $name) writes $name into the quoted filename parameter of Content-Disposition without escaping double quotes. An application that passes request data as the attachment name can be made to send a second filename parameter, changing the name the response is saved under.

    References: https://ubuntu.com/security/CVE-2026-120647, https://www.cve.org/CVERecord?id=CVE-2026-120647, https://lists.security.metacpan.org/cve-announce/msg/44874995/, https://github.com/leejo/CGI.pm/commit/131280a5c5bc51b65797bd57ef0ee8da8468065b, https://github.com/leejo/CGI.pm/commit/131280a5c5bc51b65797bd57ef0ee8da8468065b.patch, https://metacpan.org/release/LEEJO/CGI-4.72/source/lib/CGI.pm, https://metacpan.org/release/LEEJO/CGI-5.00/changes

    Affected packages

    Package

    Name: libcgi-pm-perl

    Purl: pkg:deb/ubuntu/libcgi-pm-perl?arch=source&distro=xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    4.21-1

    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-2026-120647 | CVE-DB