DEBIAN-CVE-2021-26813

    Dashboard / Vulnerabilities / DEBIAN-CVE-2021-26813

    DEBIAN-CVE-2021-26813

    Published: 3 Mar 2021Last Modified: 1 Sept 2026
    Upstream:
    CVE-2021-26813

    Summary:

    Details: markdown2 >=1.0.1.18, fixed in 2.4.0, is affected by a regular expression denial of service vulnerability. If an attacker provides a malicious string, it can make markdown2 processing difficult or delayed for an extended period of time.

    References: https://security-tracker.debian.org/tracker/CVE-2021-26813

    Affected packages

    Package

    Name: python-markdown2

    Purl: pkg:deb/debian/python-markdown2?arch=source&distro=bookworm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.3.10-1.1

    Affected versions

    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
    DEBIAN-CVE-2021-26813 | CVE-DB