CVE-2020-26298

    Dashboard / Vulnerabilities / CVE-2020-26298

    CVE-2020-26298

    Published: 11 Jan 2021Last Modified: 9 Jul 2026

    Summary:

    Details: Redcarpet is a Ruby library for Markdown processing. In Redcarpet before version 3.5.1, there is an injection vulnerability which can enable a cross-site scripting attack. In affected versions no HTML escaping was being performed when processing quotes. This applies even when the `:escape_html` option was being used. This is fixed in version 3.5.1 by the referenced commit.

    References: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BFMYDIONVWATY7EB6EARDVXT47AYCRNM/, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FNO4ZZUPGAEUXKQL4G2HRIH7CUZKPCT6/, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PXNNWHHAPREDM3XJDACYRTK7DBMUONBI/, https://github.com/advisories/GHSA-q3wr-qw3g-3p4h, https://github.com/vmg/redcarpet/blob/master/CHANGELOG.md#version-351-security, https://lists.debian.org/debian-lts-announce/2021/01/msg00014.html, https://rubygems.org/gems/redcarpet, https://www.debian.org/security/2021/dsa-4831, https://github.com/vmg/redcarpet/commit/a699c82292b17c8e6a62e1914d5eccc252272793

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -a699c82292b17c8e6a62e1914d5eccc252272793

    Affected versions

    v3.5.0

    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-2020-26298 | CVE-DB