CVE-2018-11693: Sass-Lang Libsass

High severity, CVSS 8.1. EPSS: 1.4% chance of exploitation in the next 30 days.

An issue was discovered in LibSass through 3.5.4. An out-of-bounds read of a memory region was found in the function Sass::Prelexer::skip_over_scopes which could be leveraged by an attacker to disclose information or manipulated to read from unmapped memory causing a denial of service.

Affected products

• Sass-Lang Libsass: up to and including 3.5.4

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