This might be proprietary software.

#Vulnerabilities 3
Date ID Summary Products Score Patch
2020-02-06 CVE-2016-1544 nghttp2 before 1.7.1 allows remote attackers to cause a denial of service (memory exhaustion). Fedora, Nghttp2 N/A
2018-05-08 CVE-2018-1000168 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. Nghttp2, Node\.js 7.5
2016-01-12 CVE-2015-8659 The idle stream handling in nghttp2 before 1.6.0 allows attackers to have unspecified impact via unknown vectors, aka a heap-use-after-free bug. Iphone_os, Mac_os_x, Tvos, Watchos, Nghttp2 10.0