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    CVE-2026-117540

    svg-sanitizer from 0.5.3 before 1.1.0 contains a denial of service vulnerability in Sanitizer::sanitize() that repeatedly rescans the whole input while stripping PHP tags. Unauthenticated attackers can upload SVGs with many overlapping PHP tag openers and closers, forcing quadratic preg_replace passes that exhaust worker CPU for minutes.

    Published:Oct 27, 2026
    Last Modified:Nov 2, 2026
    EPS:Oct 27, 2026
    EPSS Score:0.00354
    CVSS Score:7.5

    Affected Products

    Vendor
    Svg-sanitizer Project
    Product
    Svg-sanitizer

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-117541 (CVSS 6.9) — svg-sanitizer from 0.11.0 before 1.1.0 contains an uncaught exception vulnerability that allows attackers to c…
    CVE-2026-117539 (CVSS 5.1) — darylldoyle svg-sanitizer before 1.0.0 contains CSS injection and remote reference bypass vulnerabilities that…
    CVE-2025-55166 (CVSS 5.1) — savg-sanitizer is a PHP SVG/XML sanitizer. Prior to version 0.22.0, the sanitization logic in the cleanXlinkHr…
    CVE-2022-23638 (CVSS 6.2) — svg-sanitizer is a SVG/XML sanitizer written in PHP. A cross-site scripting vulnerability impacts all users of…
    CVE-2019-10772 (CVSS 6.1) — It is possible to bypass enshrined/svg-sanitize before 0.13.1 using the "xlink:href" attribute due to mishandl…
    CVE-2019-18857 (CVSS 7.5) — darylldoyle svg-sanitizer before 0.12.0 mishandles script and data values in attributes, as demonstrated by un…

    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