GHSA-fw3v-x4f2-v673

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    GHSA-fw3v-x4f2-v673

    Published: 26 Jul 2022Last Modified: 25 Sept 2024

    Summary: Mistune vulnerable to catastrophic backtracking

    Details: In Mistune through 2.0.2, support of inline markup is implemented by using regular expressions that can involve a high amount of backtracking on certain edge cases. This behavior is commonly named catastrophic backtracking.

    References: https://nvd.nist.gov/vuln/detail/CVE-2022-34749, https://github.com/lepture/mistune/issues/314#issuecomment-1223972386, https://github.com/lepture/mistune/commit/a6d43215132fe4f3d93f8d7e90ba83b16a0838b2, https://github.com/lepture/mistune/commit/ca1e7b506850f4e488823fc7338b49a8f9852718, https://github.com/lepture/mistune, https://github.com/lepture/mistune/releases, https://github.com/pypa/advisory-database/tree/main/vulns/mistune/PYSEC-2022-237.yaml, https://lists.fedoraproject.org/archives/list/[email protected]/message/TQHXITQ2DSBYOILKHXBSBB7PFBPZHF63

    Affected packages

    Package

    Name: mistune

    Purl: pkg:pypi/mistune

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 2.0.0a1
    Fixed -2.0.3

    Affected versions

    2.0.0
    2.0.0a1
    2.0.0a2
    2.0.0a3
    2.0.0a4
    2.0.0a5
    2.0.0a6
    2.0.0rc1
    2.0.1
    2.0.2

    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-fw3v-x4f2-v673 | CVE-DB