CVE-2026-121446

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    CVE-2026-121446

    Published: 3 Nov 2026Last Modified: 5 Nov 2026

    Summary: svg-sanitizer 0.5.0 before 1.1.0 Incomplete url() Filtering in SVG Attributes

    Details: svg-sanitizer from 0.5.0 before 1.1.0 contains an incomplete filtering vulnerability that allows attackers to bypass remote URL removal by using CSS escape sequences inside url() in SVG presentation attributes. Attackers can supply SVG files with attributes like fill containing escaped slashes that browsers resolve to remote URLs, triggering external requests and enabling data exfiltration.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/121xxx/CVE-2026-121446.json, https://github.com/darylldoyle/svg-sanitizer/security/advisories/GHSA-3vh3-jf65-656w, https://nvd.nist.gov/vuln/detail/CVE-2026-121446, https://www.vulncheck.com/advisories/svg-sanitizer-0.5.0-before-1.1.0-incomplete-url-filtering-in-svg-attributes

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- b76bed5b7a2aecf7ab4c320878c09cadbe456ce5
    Fixed -9ba9001493f5da737759303f13bd965ebdaa778c

    Affected versions

    1.0.0

    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
    CVE-2026-121446 | CVE-DB