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    CVE-2026-31899

    CairoSVG is an SVG converter based on Cairo, a 2D graphics library. Prior to Kozea/CairoSVG has exponential denial of service via recursive <use> element amplification in cairosvg/defs.py. This causes CPU exhaustion from a small input.

    Published:Mar 13, 2026
    Last Modified:Mar 23, 2026
    EPS:Mar 13, 2026
    EPSS Score:0.00055
    CVSS Score:7.5

    Affected Products

    Vendor
    Courtbouillon
    Product
    Cairosvg
    Vendor
    Kozea
    Product
    Cairosvg

    Exploits

    https://github.com/Kozea/CairoSVG/security/advisories/GHSA-f38f-5xpm-9r7chttps://github.com/SnailSploit/CVE-2026-31899

    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