Resource exhaustion in Darylldoyle Svg-Sanitizer
CVE-2026-107379
savg-sanitizer is a PHP SVG/XML sanitizer. Prior to 1.0.0, svg-sanitizer allows a crafted SVG DTD with a #FIXED attribute default to make cleanAttributesOnWhitelist() perform a double DOMElement::removeAttribute() call on the same attribute name in src/Sanitizer.php. The first removal deletes the explicit attribute, while the DTD default rematerializes the value before the href safety path performs the second removal, which can corrupt libxml state and terminate the PHP worker. An attacker who can submit SVG content to a sanitization endpoint can repeatedly interrupt workers and degrade or exhaust application availability. This issue is fixed in version 1.0.0.
Published .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Darylldoyle Svg-Sanitizer — versions < 1.0.0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-107379?
- CVE-2026-107379 is a medium-severity vulnerability in Darylldoyle Svg-Sanitizer, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 6.5/10. Published 2026-10-08.
- How severe is CVE-2026-107379?
- Medium severity. CVSS v3 base score is 6.5 out of 10.