Main Vulnerability Database Vulnerabilities #VU146560

Improper Handling of Case Sensitivity in SVG Sanitizer - #VU146560

Published: September 1, 2026

Vulnerability identifier: #VU146560

CSH Severity: Medium

CVSS v4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: N/A

CWE-ID: CWE-178

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to improper handling of case sensitivity in Resolver::processReferences() when processing SVG elements with mixed-case xlink:href attributes. A remote attacker can submit a specially crafted SVG file to cause a denial of service.

User interaction is required to open or render the sanitized SVG output.

Affected software

SVG Sanitizer

Remediation

Install security update from vendor's website.

SVG Sanitizer - update to 1.0.0

External References

https://github.com/darylldoyle/svg-sanitizer/security/advisories/GHSA-m9xh-6747-9r6f

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