CVE-2018-19839: Sass-Lang Libsass

Medium severity, CVSS 6.5. EPSS: 2.2% chance of exploitation in the next 30 days.

In LibSass prior to 3.5.5, the function handle_error in sass_context.cpp allows attackers to cause a denial-of-service resulting from a heap-based buffer over-read via a crafted sass file.

Affected products

• Sass-Lang Libsass: before 3.5.5 (fixed in 3.5.5)

Published 2018-12-04. Last modified 2026-06-17.