CVE-2017-10687: Libsass

High severity, CVSS 7.5. EPSS: 1.8% chance of exploitation in the next 30 days.

In LibSass 3.4.5, there is a heap-based buffer over-read in the function json_mkstream() in sass_context.cpp. A crafted input will lead to a remote denial of service attack.

Affected products

• Libsass Libsass: version 3.4.5 only

Published 2017-06-29. Last modified 2026-06-17.