PYSEC-2023-236

    Dashboard / Vulnerabilities / PYSEC-2023-236

    PYSEC-2023-236

    Published: 13 Nov 2023Last Modified: 10 Jun 2026

    Summary:

    Details: Remarshal prior to v0.17.1 expands YAML alias nodes unlimitedly, hence Remarshal is vulnerable to Billion Laughs Attack. Processing untrusted YAML files may cause a denial-of-service (DoS) condition.

    References: https://github.com/remarshal-project/remarshal/releases/tag/v0.17.1, https://github.com/remarshal-project/remarshal/commit/fd6ac799a02f533c3fc243b49cdd6d21aa7ee494, https://jvn.jp/en/jp/JVN86156389/, https://github.com/advisories/GHSA-gw7g-qr8w-3448

    Affected packages

    Package

    Name: remarshal

    Purl: pkg:pypi/remarshal

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -fd6ac799a02f533c3fc243b49cdd6d21aa7ee494

    Affected versions

    0.10.0

    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
    PYSEC-2023-236 | CVE-DB