PHP SVG/XML Sanitizer Vulnerability in Daryll Doyle's SVG Sanitizer
CVE-2026-107379

6.5MEDIUM

Key Information:

Vendor

Darylldoyle

Status
Svg-sanitizer
Vendor
CVE Published:
8 October 2026

What is CVE-2026-107379?

The SVG Sanitizer, a PHP-based tool developed by Daryll Doyle, has a vulnerability that allows attackers to exploit crafted SVG DTDs. This exploitation can lead to multiple calls to remove attributes on the same element, resulting in corrupted libxml states and potential worker terminations. This vulnerability affects the application by degrading its availability, particularly when SVG content is submitted to a sanitization endpoint. The flaw has been addressed in version 1.0.0, ensuring enhanced protection against such attacks.

Affected Version(s)

svg-sanitizer < 1.0.0

References

https://github.com/darylldoyle/svg-sanitizer/security/adv...
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https://github.com/darylldoyle/svg-sanitizer/commit/23877...
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https://github.com/darylldoyle/svg-sanitizer/releases/tag...
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CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.