CVE-2023-44487

Exp

The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.

Published: 2023-10-10 Last update: 2026-05-12 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-44487 is rated Critical Active Threat (89.9/100): CVSS High severity, with high exploitation likelihood (EPSS 94.45%, 100th percentile). CISA KEV confirms active exploitation (added 2023-10-10) affecting IETF / HTTP/2. a weakness (CWE-400) Unauthenticated remote administrative access may be possible. The CISA remediation deadline has passed—treat as an emergency patch priority.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

CISA KEV Record for CVE-2023-44487

Name: HTTP/2 Rapid Reset Attack Vulnerability · CISA KEV detail

Exploit added: 2023-10-10

Action due: 2023-10-31

Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Public exploit references (Exploit-DB) for CVE-2023-44487

EDB-ID Source Kind Published Link
52426 exploit_db edb 2025-09-16 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2023-44487

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 2026-05-28 94.49% 94.45% -0.05%
2 2026-05-22 94.45% 94.49% +0.05%
3 2026-05-07 — 94.45% —

Full EPSS history (67 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-44487

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 [email protected]
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2023-44487

GitHub Security Advisory for CVE-2023-44487

GHSA-qppj-fm5r-hxr3 · Severity: medium · Ecosystem: go — HTTP/2 Stream Cancellation Attack

OS Trackers for CVE-2023-44487

vendor priority summary link
alpine — CVE-2023-44487: 15 source package rows (dotnet6-build, dotnet6-runtime, …); 84 state rows across 13 repos (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 84, open 0. https://security.alpinelinux.org/vuln/CVE-2023-44487
debian end-of-life CVE-2023-44487 end-of-life priority: Debian including 12 source packages (dnsdist, grpc, …), 54 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 41, open 13. https://security-tracker.debian.org/tracker/CVE-2023-44487
gentoo high CVE-2023-44487: 4 GLSA(s) (202311-09, 202408-10, 202412-14, 202505-11), 4 atom(s) (app-admin/consul, dev-lang/go, net-libs/nghttp2, net-libs/nodejs); latest impact high. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2023-44487
redhat high — https://access.redhat.com/security/cve/CVE-2023-44487
suse high CVE-2023-44487 severity important: SUSE including 924 source package names (1.1.0-1.1:nginx-1.21.5-150600.10.3.1, 1.2.3-2.2.63:libnghttp2-14-1.40.0-150200.12.1, …), 2378 product×package rows across 326 product lines (Container bci/bci-init, Container bci/golang, … (326 product lines)): Fixed 1987, Known Not Affected 207, Known Affected 180, First Fixed 4. https://www.suse.com/security/cve/CVE-2023-44487/
ubuntu high CVE-2023-44487 high priority: Ubuntu including 14 source packages (dnsdist, dotnet6, …), 165 status rows across 13 suites (bionic, focal, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 63, released 46, DNE 35, ignored 21. https://ubuntu.com/security/CVE-2023-44487

Affected software / configurations for CVE-2023-44487

Vendor Product Version Raw CPE
siemens simatic_s7-1500_cpu_1518f-4_pn\/dp_mfp_firmware >= 3.1.5 cpe:2.3:o:siemens:simatic_s7-1500_cpu_1518f-4_pn\/dp_mfp_firmware:*:*:*:*:*:*:*:*
siemens sinec_ins < 1.0 cpe:2.3:a:siemens:sinec_ins:*:*:*:*:*:*:*:*
siemens sinec_ins 1.0 cpe:2.3:a:siemens:sinec_ins:1.0:-:*:*:*:*:*:*
siemens sinec_ins 1.0 cpe:2.3:a:siemens:sinec_ins:1.0:sp1:*:*:*:*:*:*
siemens sinec_ins 1.0 cpe:2.3:a:siemens:sinec_ins:1.0:sp2:*:*:*:*:*:*
siemens sinec_ins 1.0 cpe:2.3:a:siemens:sinec_ins:1.0:sp2_update_1:*:*:*:*:*:*
siemens sinec_ins 1.0 cpe:2.3:a:siemens:sinec_ins:1.0:sp2_update_2:*:*:*:*:*:*
siemens sinec_nms < 3.0 cpe:2.3:a:siemens:sinec_nms:*:*:*:*:*:*:*:*
siemens st7_scadaconnect < 1.1 cpe:2.3:a:siemens:st7_scadaconnect:*:*:*:*:*:*:*:*
siemens ruggedcom_ape1808_firmware — cpe:2.3:o:siemens:ruggedcom_ape1808_firmware:-:*:*:*:*:*:*:*
siemens simatic_s7-1500_cpu_1518-4_pn\/dp_mfp_firmware >= 3.1.5 cpe:2.3:o:siemens:simatic_s7-1500_cpu_1518-4_pn\/dp_mfp_firmware:*:*:*:*:*:*:*:*
siemens siplus_s7-1500_cpu_1518-4_pn\/dp_mfp_firmware >= 3.1.5 cpe:2.3:o:siemens:siplus_s7-1500_cpu_1518-4_pn\/dp_mfp_firmware:*:*:*:*:*:*:*:*
ietf http 2.0 cpe:2.3:a:ietf:http:2.0:*:*:*:*:*:*:*
nghttp2 nghttp2 < 1.57.0 cpe:2.3:a:nghttp2:nghttp2:*:*:*:*:*:*:*:*
netty netty < 4.1.100 cpe:2.3:a:netty:netty:*:*:*:*:*:*:*:*
envoyproxy envoy 1.24.10 cpe:2.3:a:envoyproxy:envoy:1.24.10:*:*:*:*:*:*:*
envoyproxy envoy 1.25.9 cpe:2.3:a:envoyproxy:envoy:1.25.9:*:*:*:*:*:*:*
envoyproxy envoy 1.26.4 cpe:2.3:a:envoyproxy:envoy:1.26.4:*:*:*:*:*:*:*
envoyproxy envoy 1.27.0 cpe:2.3:a:envoyproxy:envoy:1.27.0:*:*:*:*:*:*:*
eclipse jetty < 9.4.53 cpe:2.3:a:eclipse:jetty:*:*:*:*:*:*:*:*
eclipse jetty >= 10.0.0, < 10.0.17 cpe:2.3:a:eclipse:jetty:*:*:*:*:*:*:*:*
eclipse jetty >= 11.0.0, < 11.0.17 cpe:2.3:a:eclipse:jetty:*:*:*:*:*:*:*:*
eclipse jetty >= 12.0.0, < 12.0.2 cpe:2.3:a:eclipse:jetty:*:*:*:*:*:*:*:*
caddyserver caddy < 2.7.5 cpe:2.3:a:caddyserver:caddy:*:*:*:*:*:*:*:*
golang go < 1.20.10 cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*
golang go >= 1.21.0, < 1.21.3 cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*
golang http2 < 0.17.0 cpe:2.3:a:golang:http2:*:*:*:*:*:go:*:*
golang networking < 0.17.0 cpe:2.3:a:golang:networking:*:*:*:*:*:go:*:*
f5 big-ip_access_policy_manager >= 13.1.0, <= 13.1.5 cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager >= 14.1.0, <= 14.1.5 cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager >= 15.1.0, <= 15.1.10 cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager >= 16.1.0, <= 16.1.4 cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager 17.1.0 cpe:2.3:a:f5:big-ip_access_policy_manager:17.1.0:*:*:*:*:*:*:*
f5 big-ip_advanced_firewall_manager >= 13.1.0, <= 13.1.5 cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*
f5 big-ip_advanced_firewall_manager >= 14.1.0, <= 14.1.5 cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*
f5 big-ip_advanced_firewall_manager >= 15.1.0, <= 15.1.10 cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*
f5 big-ip_advanced_firewall_manager >= 16.1.0, <= 16.1.4 cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*
f5 big-ip_advanced_firewall_manager 17.1.0 cpe:2.3:a:f5:big-ip_advanced_firewall_manager:17.1.0:*:*:*:*:*:*:*
f5 big-ip_advanced_web_application_firewall >= 13.1.0, <= 13.1.5 cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:*
f5 big-ip_advanced_web_application_firewall >= 14.1.0, <= 14.1.5 cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:*
f5 big-ip_advanced_web_application_firewall >= 15.1.0, <= 15.1.10 cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:*
f5 big-ip_advanced_web_application_firewall >= 16.1.0, <= 16.1.4 cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:*
f5 big-ip_advanced_web_application_firewall 17.1.0 cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:17.1.0:*:*:*:*:*:*:*
f5 big-ip_analytics >= 13.1.0, <= 13.1.5 cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*
f5 big-ip_analytics >= 14.1.0, <= 14.1.5 cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*
f5 big-ip_analytics >= 15.1.0, <= 15.1.10 cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*
f5 big-ip_analytics >= 16.1.0, <= 16.1.4 cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*
f5 big-ip_analytics 17.1.0 cpe:2.3:a:f5:big-ip_analytics:17.1.0:*:*:*:*:*:*:*
f5 big-ip_application_acceleration_manager >= 13.1.0, <= 13.1.5 cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*
f5 big-ip_application_acceleration_manager >= 14.1.0, <= 14.1.5 cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*
f5 big-ip_application_acceleration_manager >= 15.1.0, <= 15.1.10 cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*
f5 big-ip_application_acceleration_manager >= 16.1.0, <= 16.1.4 cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*
f5 big-ip_application_acceleration_manager 17.1.0 cpe:2.3:a:f5:big-ip_application_acceleration_manager:17.1.0:*:*:*:*:*:*:*
f5 big-ip_application_security_manager >= 13.1.0, <= 13.1.5 cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*
f5 big-ip_application_security_manager >= 14.1.0, <= 14.1.5 cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*
f5 big-ip_application_security_manager >= 15.1.0, <= 15.1.10 cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*
f5 big-ip_application_security_manager >= 16.1.0, <= 16.1.4 cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*
f5 big-ip_application_security_manager 17.1.0 cpe:2.3:a:f5:big-ip_application_security_manager:17.1.0:*:*:*:*:*:*:*
f5 big-ip_application_visibility_and_reporting >= 13.1.0, <= 13.1.5 cpe:2.3:a:f5:big-ip_application_visibility_and_reporting:*:*:*:*:*:*:*:*
f5 big-ip_application_visibility_and_reporting >= 14.1.0, <= 14.1.5 cpe:2.3:a:f5:big-ip_application_visibility_and_reporting:*:*:*:*:*:*:*:*
f5 big-ip_application_visibility_and_reporting >= 15.1.0, <= 15.1.10 cpe:2.3:a:f5:big-ip_application_visibility_and_reporting:*:*:*:*:*:*:*:*
f5 big-ip_application_visibility_and_reporting >= 16.1.0, <= 16.1.4 cpe:2.3:a:f5:big-ip_application_visibility_and_reporting:*:*:*:*:*:*:*:*
f5 big-ip_application_visibility_and_reporting 17.1.0 cpe:2.3:a:f5:big-ip_application_visibility_and_reporting:17.1.0:*:*:*:*:*:*:*
f5 big-ip_carrier-grade_nat >= 13.1.0, <= 13.1.5 cpe:2.3:a:f5:big-ip_carrier-grade_nat:*:*:*:*:*:*:*:*
f5 big-ip_carrier-grade_nat >= 14.1.0, <= 14.1.5 cpe:2.3:a:f5:big-ip_carrier-grade_nat:*:*:*:*:*:*:*:*
f5 big-ip_carrier-grade_nat >= 15.1.0, <= 15.1.10 cpe:2.3:a:f5:big-ip_carrier-grade_nat:*:*:*:*:*:*:*:*
f5 big-ip_carrier-grade_nat >= 16.1.0, <= 16.1.4 cpe:2.3:a:f5:big-ip_carrier-grade_nat:*:*:*:*:*:*:*:*
f5 big-ip_carrier-grade_nat 17.1.0 cpe:2.3:a:f5:big-ip_carrier-grade_nat:17.1.0:*:*:*:*:*:*:*
f5 big-ip_ddos_hybrid_defender >= 13.1.0, <= 13.1.5 cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:*:*:*:*:*:*:*:*
f5 big-ip_ddos_hybrid_defender >= 14.1.0, <= 14.1.5 cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:*:*:*:*:*:*:*:*
f5 big-ip_ddos_hybrid_defender >= 15.1.0, <= 15.1.10 cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:*:*:*:*:*:*:*:*
f5 big-ip_ddos_hybrid_defender >= 16.1.0, <= 16.1.4 cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:*:*:*:*:*:*:*:*
f5 big-ip_ddos_hybrid_defender 17.1.0 cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:17.1.0:*:*:*:*:*:*:*
f5 big-ip_domain_name_system >= 13.1.0, <= 13.1.5 cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*
f5 big-ip_domain_name_system >= 14.1.0, <= 14.1.5 cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*
f5 big-ip_domain_name_system >= 15.1.0, <= 15.1.10 cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*
f5 big-ip_domain_name_system >= 16.1.0, <= 16.1.4 cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*
f5 big-ip_domain_name_system 17.1.0 cpe:2.3:a:f5:big-ip_domain_name_system:17.1.0:*:*:*:*:*:*:*
f5 big-ip_fraud_protection_service >= 13.1.0, <= 13.1.5 cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:*
f5 big-ip_fraud_protection_service >= 14.1.0, <= 14.1.5 cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:*

References for CVE-2023-44487

URL Tags
http://www.openwall.com/lists/oss-security/2023/10/10/6 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2023/10/10/7 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2023/10/13/4 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2023/10/13/9 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2023/10/18/4 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2023/10/18/8 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2023/10/19/6 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2023/10/20/8 Mailing List Third Party Advisory
https://access.redhat.com/security/cve/cve-2023-44487 Vendor Advisory
https://arstechnica.com/security/2023/10/how-ddosers-used-the-http-2-protocol-to-deliver-attacks-of-unprecedented-size/ Press/Media Coverage Third Party Advisory
https://aws.amazon.com/security/security-bulletins/AWS-2023-011/ Third Party Advisory
https://blog.cloudflare.com/technical-breakdown-http2-rapid-reset-ddos-attack/ Technical Description Vendor Advisory
https://blog.cloudflare.com/zero-day-rapid-reset-http2-record-breaking-ddos-attack/ Third Party Advisory Vendor Advisory
https://blog.litespeedtech.com/2023/10/11/rapid-reset-http-2-vulnerablilty/ Vendor Advisory
https://blog.qualys.com/vulnerabilities-threat-research/2023/10/10/cve-2023-44487-http-2-rapid-reset-attack Press/Media Coverage Third Party Advisory
https://blog.vespa.ai/cve-2023-44487/ Vendor Advisory
https://bugzilla.proxmox.com/show_bug.cgi?id=4988 Issue Tracking Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2242803 Issue Tracking Vendor Advisory
https://bugzilla.suse.com/show_bug.cgi?id=1216123 Issue Tracking Vendor Advisory
https://cgit.freebsd.org/ports/commit/?id=c64c329c2c1752f46b73e3e6ce9f4329be6629f9 Mailing List Patch Vendor Advisory
https://cloud.google.com/blog/products/identity-security/google-cloud-mitigated-largest-ddos-attack-peaking-above-398-million-rps/ Technical Description Vendor Advisory
https://cloud.google.com/blog/products/identity-security/how-it-works-the-novel-http2-rapid-reset-ddos-attack Technical Description Vendor Advisory
https://community.traefik.io/t/is-traefik-vulnerable-to-cve-2023-44487/20125 Vendor Advisory
https://discuss.hashicorp.com/t/hcsec-2023-32-vault-consul-and-boundary-affected-by-http-2-rapid-reset-denial-of-service-vulnerability-cve-2023-44487/59715 Third Party Advisory
https://edg.io/lp/blog/resets-leaks-ddos-and-the-tale-of-a-hidden-cve Broken Link
https://forums.swift.org/t/swift-nio-http2-security-update-cve-2023-44487-http-2-dos/67764 Vendor Advisory
https://gist.github.com/adulau/7c2bfb8e9cdbe4b35a5e131c66a0c088 Issue Tracking Patch
https://github.com/Azure/AKS/issues/3947 Issue Tracking
https://github.com/Kong/kong/discussions/11741 Issue Tracking
https://github.com/advisories/GHSA-qppj-fm5r-hxr3 Vendor Advisory
https://github.com/advisories/GHSA-vx74-f528-fxqg Mitigation Patch Vendor Advisory
https://github.com/advisories/GHSA-xpw8-rcwv-8f8p Patch Vendor Advisory
https://github.com/akka/akka-http/issues/4323 Issue Tracking
https://github.com/alibaba/tengine/issues/1872 Issue Tracking
https://github.com/apache/apisix/issues/10320 Issue Tracking
https://github.com/apache/httpd-site/pull/10 Issue Tracking
https://github.com/apache/httpd/blob/afcdbeebbff4b0c50ea26cdd16e178c0d1f24152/modules/http2/h2_mplx.c#L1101-L1113 Product
https://github.com/apache/tomcat/tree/main/java/org/apache/coyote/http2 Product Third Party Advisory
https://github.com/apache/trafficserver/pull/10564 Issue Tracking Patch
https://github.com/arkrwn/PoC/tree/main/CVE-2023-44487 Vendor Advisory
https://github.com/bcdannyboy/CVE-2023-44487 Third Party Advisory
https://github.com/caddyserver/caddy/issues/5877 Issue Tracking Vendor Advisory
https://github.com/caddyserver/caddy/releases/tag/v2.7.5 Release Notes Third Party Advisory
https://github.com/dotnet/announcements/issues/277 Issue Tracking Mitigation Vendor Advisory
https://github.com/dotnet/core/blob/e4613450ea0da7fd2fc6b61dfb2c1c1dec1ce9ec/release-notes/6.0/6.0.23/6.0.23.md?plain=1#L73 Product Release Notes
https://github.com/eclipse/jetty.project/issues/10679 Issue Tracking
https://github.com/envoyproxy/envoy/pull/30055 Issue Tracking Patch
https://github.com/etcd-io/etcd/issues/16740 Issue Tracking Patch
https://github.com/facebook/proxygen/pull/466 Issue Tracking Patch
https://github.com/golang/go/issues/63417 Issue Tracking
https://github.com/grpc/grpc-go/pull/6703 Issue Tracking Patch
https://github.com/grpc/grpc/releases/tag/v1.59.2 Mailing List
https://github.com/h2o/h2o/pull/3291 Issue Tracking Patch
https://github.com/h2o/h2o/security/advisories/GHSA-2m7v-gc89-fjqf Vendor Advisory
https://github.com/haproxy/haproxy/issues/2312 Issue Tracking
https://github.com/icing/mod_h2/blob/0a864782af0a942aa2ad4ed960a6b32cd35bcf0a/mod_http2/README.md?plain=1#L239-L244 Product
https://github.com/junkurihara/rust-rpxy/issues/97 Issue Tracking
https://github.com/kazu-yamamoto/http2/commit/f61d41a502bd0f60eb24e1ce14edc7b6df6722a1 Patch
https://github.com/kazu-yamamoto/http2/issues/93 Issue Tracking
https://github.com/kubernetes/kubernetes/pull/121120 Issue Tracking Patch
https://github.com/line/armeria/pull/5232 Issue Tracking Patch
https://github.com/linkerd/website/pull/1695/commits/4b9c6836471bc8270ab48aae6fd2181bc73fd632 Patch
https://github.com/micrictor/http2-rst-stream Exploit Third Party Advisory
https://github.com/microsoft/CBL-Mariner/pull/6381 Issue Tracking Patch
https://github.com/netty/netty/commit/58f75f665aa81a8cbcf6ffa74820042a285c5e61 Patch
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https://github.com/nghttp2/nghttp2/releases/tag/v1.57.0 Release Notes
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https://github.com/opensearch-project/data-prepper/issues/3474 Issue Tracking Patch
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https://security.netapp.com/advisory/ntap-20240621-0006/ Exploit Third Party Advisory
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https://www.bleepingcomputer.com/news/security/new-http-2-rapid-reset-zero-day-attack-breaks-ddos-records/ Third Party Advisory
https://www.cisa.gov/news-events/alerts/2023/10/10/http2-rapid-reset-vulnerability-cve-2023-44487 Third Party Advisory US Government Resource
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https://www.haproxy.com/blog/haproxy-is-not-affected-by-the-http-2-rapid-reset-attack-cve-2023-44487 Third Party Advisory Vendor Advisory
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https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZLU6U2R2IC2K64NDPNMV55AUAO65MAF4/ Mailing List Third Party Advisory
https://www.vicarius.io/vsociety/posts/rapid-reset-cve-2023-44487-dos-in-http2-understanding-the-root-cause Third Party Advisory
https://cert-portal.siemens.com/productcert/html/ssa-082556.html Third Party Advisory
https://cert-portal.siemens.com/productcert/html/ssa-341067.html Third Party Advisory
https://cert-portal.siemens.com/productcert/html/ssa-784301.html Third Party Advisory
https://cert-portal.siemens.com/productcert/html/ssa-832273.html Third Party Advisory
https://cert-portal.siemens.com/productcert/html/ssa-915275.html Third Party Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-44487 US Government Resource
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