CVE-2019-9513
HIGH7.5EPSS 6.6%Published: 8/13/2019Modified: 4/28/2026
Description
Some HTTP/2 implementations are vulnerable to resource loops, potentially leading to a denial of service. The attacker creates multiple request streams and continually shuffles the priority of the streams in a way that causes substantial churn to the priority tree. This can consume excess CPU.
Affected packages (6)
- Alpine/nghttp2from 0, < 1.39.2-r0
- Alpine/nginxfrom 0, < 1.16.1-r0
- Alpine/nodejsfrom 0, < 10.16.3-r0
- Debian/nghttp2from 0, < 1.39.2-1
- Debian/nginxfrom 0, < 1.14.2-3
- Debian/nodejsfrom 0, < 10.16.3~dfsg-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |