GHSA-wx77-rp39-c6vg

    Dashboard / Vulnerabilities / GHSA-wx77-rp39-c6vg

    GHSA-wx77-rp39-c6vg

    Published: 4 Sept 2020Last Modified: 10 Sept 2026

    Summary: Regular Expression Denial of Service in markdown

    Details: All versions of `markdown` are vulnerable to Regular Expression Denial of Service (ReDoS). The `markdown.toHTML()` function has significantly degraded performance when parsing long strings containing underscores. This may lead to Denial of Service if the parser accepts user input. ## Recommendation No fix is currently available. Consider using an alternative package until a fix is made available.

    References: https://github.com/evilstreak/markdown-js, https://www.npmjs.com/advisories/1330

    Affected packages

    Package

    Name: markdown

    Purl: pkg:npm/markdown

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0.0.0
    Fixed -None

    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
    GHSA-wx77-rp39-c6vg | CVE-DB