CVE-2018-1000168: Debian Linux

High severity, CVSS 7.5. EPSS: 10.6% chance of exploitation in the next 30 days.

nghttp2 version >= 1.10.0 and nghttp2 <= v1.31.0 contains an Improper Input Validation CWE-20 vulnerability in ALTSVC frame handling that can result in segmentation fault leading to denial of service. This attack appears to be exploitable via network client. This vulnerability appears to have been fixed in >= 1.31.1.

Affected products

• Debian Debian Linux: version 9.0 only
• NGHTTP2 NGHTTP2: from 1.10.0, up to and including 1.31.0
• Node.js Node.js: from 6.0.0, up to and including 6.8.1; from 8.4.0, up to and including 8.17.0; from 9.0.0, up to and including 9.11.2; from 10.0.0, before 10.4.1 (fixed in 10.4.1)

Published 2018-05-08. Last modified 2026-06-17.