GHSA-39qc-96h7-956f · Severity: high · Ecosystem: go — golang.org/x/net/http vulnerable to a reset flood
Some HTTP/2 implementations are vulnerable to a reset flood, potentially leading to a denial of service. The attacker opens a number of streams and sends an invalid request over each stream that should solicit a stream of RST_STREAM frames from the peer. Depending on how the peer queues the RST_STREAM frames, this can consume excess memory, CPU, or both.
Conclusion & alert: CVE-2019-9514 is rated High Risk (69.9/100): CVSS High severity, with high exploitation likelihood (EPSS 82.81%, 100th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +73.49% over the last day, indicating growing attacker interest. Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 9.32% | 82.81% | +73.49% |
| 2 | 2026-05-29 | 9.48% | 9.32% | -0.16% |
| 3 | 2026-05-27 | — | 9.48% | — |
Full EPSS history (75 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | [email protected] |
| 7.5 | 3.0 | HIGH |
|
3.9 | 3.6 | [email protected] |
| 7.8 | 2.0 | HIGH |
|
10.0 | 6.9 | [email protected] |
GHSA-39qc-96h7-956f · Severity: high · Ecosystem: go — golang.org/x/net/http vulnerable to a reset flood
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2019-9514: 6 source package rows (containerd, go, h2o, k3s, nodejs, py3-twisted); 42 state rows across 17 repos (3.10-main, 3.11-main, 3.12-main, 3.17-community, 3.17-main, 3.18-community, 3.18-main, 3.19-community, 3.19-main, 3.20-community, 3.20-main, 3.21-community, 3.21-main, 3.22-community, 3.22-main, edge-community, edge-main); fixed 42, open 0. | https://security.alpinelinux.org/vuln/CVE-2019-9514 |
debian
|
not yet assigned | CVE-2019-9514 not yet assigned priority: Debian including 4 source packages (h2o, nodejs, rust-h2, trafficserver), 14 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 13, open 1. | https://security-tracker.debian.org/tracker/CVE-2019-9514 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2019-9514 |
suse
|
high | CVE-2019-9514 severity important: SUSE including 169 source package names (MozillaFirefox-68.2.0-78.51.4, MozillaFirefox-branding-SLED-68-21.9.8, …), 438 product×package rows across 43 product lines (SUSE CaaS Platform 3.0, SUSE CaaS Platform 4.5, … (43 product lines)): Fixed 326, Known Not Affected 112. | https://www.suse.com/security/cve/CVE-2019-9514/ |
ubuntu
|
medium | CVE-2019-9514 medium priority: Ubuntu including 16 source packages (golang, golang-1.10, …), 292 status rows across 19 suites (bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): DNE 132, not-affected 61, ignored 46, needs-triage 19, released 18, needed 16. | https://ubuntu.com/security/CVE-2019-9514 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| apple | swiftnio | >= 1.0.0, <= 1.4.0 | cpe:2.3:a:apple:swiftnio:*:*:*:*:*:*:*:* |
| apache | traffic_server | >= 6.0.0, <= 6.2.3 | cpe:2.3:a:apache:traffic_server:*:*:*:*:*:*:*:* |
| apache | traffic_server | >= 7.0.0, <= 7.1.6 | cpe:2.3:a:apache:traffic_server:*:*:*:*:*:*:*:* |
| apache | traffic_server | >= 8.0.0, <= 8.0.3 | cpe:2.3:a:apache:traffic_server:*:*:*:*:*:*:*:* |
| debian | debian_linux | 10.0 | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
| canonical | ubuntu_linux | 16.04 | cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* |
| canonical | ubuntu_linux | 18.04 | cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* |
| canonical | ubuntu_linux | 19.04 | cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:* |
| debian | debian_linux | 9.0 | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* |
| synology | skynas | — | cpe:2.3:a:synology:skynas:-:*:*:*:*:*:*:* |
| synology | diskstation_manager | 6.2 | cpe:2.3:o:synology:diskstation_manager:6.2:*:*:*:*:*:*:* |
| synology | vs960hd_firmware | — | cpe:2.3:o:synology:vs960hd_firmware:-:*:*:*:*:*:*:* |
| fedoraproject | fedora | 29 | cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:* |
| fedoraproject | fedora | 30 | cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* |
| opensuse | leap | 15.0 | cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:* |
| opensuse | leap | 15.1 | cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* |
| redhat | developer_tools | 1.0 | cpe:2.3:a:redhat:developer_tools:1.0:*:*:*:*:*:*:* |
| redhat | jboss_core_services | 1.0 | cpe:2.3:a:redhat:jboss_core_services:1.0:*:*:*:*:*:*:* |
| redhat | jboss_enterprise_application_platform | 7.2.0 | cpe:2.3:a:redhat:jboss_enterprise_application_platform:7.2.0:*:*:*:*:*:*:* |
| redhat | jboss_enterprise_application_platform | 7.3.0 | cpe:2.3:a:redhat:jboss_enterprise_application_platform:7.3.0:*:*:*:*:*:*:* |
| redhat | openshift_container_platform | 3.9 | cpe:2.3:a:redhat:openshift_container_platform:3.9:*:*:*:*:*:*:* |
| redhat | openshift_container_platform | 3.10 | cpe:2.3:a:redhat:openshift_container_platform:3.10:*:*:*:*:*:*:* |
| redhat | openshift_container_platform | 3.11 | cpe:2.3:a:redhat:openshift_container_platform:3.11:*:*:*:*:*:*:* |
| redhat | openshift_container_platform | 4.1 | cpe:2.3:a:redhat:openshift_container_platform:4.1:*:*:*:*:*:*:* |
| redhat | openshift_container_platform | 4.2 | cpe:2.3:a:redhat:openshift_container_platform:4.2:*:*:*:*:*:*:* |
| redhat | openshift_service_mesh | 1.0 | cpe:2.3:a:redhat:openshift_service_mesh:1.0:*:*:*:*:*:*:* |
| redhat | openstack | 14 | cpe:2.3:a:redhat:openstack:14:*:*:*:*:*:*:* |
| redhat | quay | 3.0.0 | cpe:2.3:a:redhat:quay:3.0.0:*:*:*:*:*:*:* |
| redhat | single_sign-on | 7.3 | cpe:2.3:a:redhat:single_sign-on:7.3:*:*:*:*:*:*:* |
| redhat | software_collections | 1.0 | cpe:2.3:a:redhat:software_collections:1.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux | 8.0 | cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_eus | 8.1 | cpe:2.3:o:redhat:enterprise_linux_eus:8.1:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server | 7.0 | cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_workstation | 7.0 | cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* |
| oracle | graalvm | 19.2.0 | cpe:2.3:a:oracle:graalvm:19.2.0:*:*:*:enterprise:*:*:* |
| mcafee | web_gateway | >= 7.7.2.0, < 7.7.2.24 | cpe:2.3:a:mcafee:web_gateway:*:*:*:*:*:*:*:* |
| mcafee | web_gateway | >= 7.8.2.0, < 7.8.2.13 | cpe:2.3:a:mcafee:web_gateway:*:*:*:*:*:*:*:* |
| mcafee | web_gateway | >= 8.1.0, < 8.2.0 | cpe:2.3:a:mcafee:web_gateway:*:*:*:*:*:*:*:* |
| netapp | cloud_insights | — | cpe:2.3:a:netapp:cloud_insights:-:*:*:*:*:*:*:* |
| netapp | trident | — | cpe:2.3:a:netapp:trident:-:*:*:*:*:*:*:* |
| f5 | big-ip_local_traffic_manager | >= 11.6.1, < 11.6.5.1 | cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* |
| f5 | big-ip_local_traffic_manager | >= 12.1.0, < 12.1.5.1 | cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* |
| f5 | big-ip_local_traffic_manager | >= 13.1.0, < 13.1.3.2 | cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* |
| f5 | big-ip_local_traffic_manager | >= 14.0.0, < 14.0.1.1 | cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* |
| f5 | big-ip_local_traffic_manager | >= 14.1.0, < 14.1.2.1 | cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* |
| f5 | big-ip_local_traffic_manager | >= 15.0.0, < 15.0.1.1 | cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* |
| nodejs | node.js | >= 8.0.0, <= 8.8.1 | cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:* |
| nodejs | node.js | >= 8.9.0, < 8.16.1 | cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:* |
| nodejs | node.js | >= 10.0.0, <= 10.12.0 | cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:* |
| nodejs | node.js | >= 10.13.0, < 10.16.3 | cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:* |
| nodejs | node.js | >= 12.0.0, < 12.8.1 | cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:* |