CVE-2026-121443
MEDIUM
NVD
CVSS Score
5.3
Severity
MEDIUM
Published
Nov 03, 2026
Vendor
unknown
Description
svg-sanitizer from 1.1.0 before 1.1.1 contains a denial of service vulnerability that allows remote attackers to crash requests by submitting SVG input ending inside an unclosed tag. Attackers can upload truncated input like a single '<' to trigger an uncaught ValueError from strpos() in hasElementWithTooManyAttributes() or hasInternalDtdSubset() on PHP 8, failing the request.