CVE-2026-107379
mediumsavg-sanitizer is a PHP SVG/XML sanitizer.
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/darylldoyle/svg-sanitizer/commit/23877db7e76f1e1df5c3e65ab30239219c3d28... security-advisories@github.com
- https://github.com/darylldoyle/svg-sanitizer/releases/tag/1.0.0 security-advisories@github.com
- https://github.com/darylldoyle/svg-sanitizer/security/advisories/GHSA-v383-3rw5-q8rf security-advisories@github.com
- https://github.com/darylldoyle/svg-sanitizer/security/advisories/GHSA-v383-3rw5-q8rf 134c704f-9b21-4f2e-91b3-4a467353bcc0