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Advisories

svg-sanitizer 0.11.0 before 1.1.0 Algorithmic Complexity DoS via use Reference Graph

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Severity
high
Date
Affecting

  • svg-sanitizer >= 0.11.0, < 1.1.0

CWE
  • CWE-400 Uncontrolled Resource Consumption
CVSS
8.7
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Credit
ba-am, AlpetGexha
Description
svg-sanitizer from 0.11.0 before 1.1.0 contains an algorithmic complexity denial of service vulnerability in hasInfiniteLoop() and countUse() of the use reference-graph analysis. Attackers can upload a small layered SVG with 15 levels of fanned-out use elements, forcing exponential path enumeration that pins PHP workers for hours.

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