CVE-2021-40346

CVE-2021-40346 — Целочисленное переполнение HAProxy, приводящее к HTTP-смагглингу Краткое описание уязвимости HAProxy — это программное обеспечение с открытым исходным кодом, выполняющее функции обратного прокси-сервера и балансировщика нагрузки, отвечающее за распределение нагрузки и обработку A...

HAProxy-CVE-2023-45539-PoC

HAProxy-CVE-2023-45539-PoC HAProxy до версии 2.8.2 принимает как часть компонента URI, что может позволить удалённым злоумышленникам получить конфиденциальную информацию или вызвать иные неопределённые последствия при неправильной интерпретации правила pathend, например, маршрутизация...

CVE-2026-33555

Обход проверки тела запроса в HAProxy H3/QUIC Standalone FIN при HTTP Request Smuggling Полная статья здесь: https://r3verii.github.io/cve/2026/04/14/haproxy-h3-standalone-fin-smuggling.html Краткое описание Уязвимость в реализации HTTP/3 в HAProxy позволяет злоумышленнику отправить HTTP-запрос с...

CVE-2021-40346

CVE-2021-40346 헤더 요청 내부 표현의 정수 오버플로로 인해 HTTP 요청 스머글링이 가능합니다. 이 저장소는 docker-compose로 구축된 PoC를 제공하며, 두 개의 docker 이미지를 사용합니다: 취약한 버전의 HaProxy이 경우 2.2.16와 WSGI로 Gunicorn을 사용하는 Flask 웹 서버입니다. 이 취약점을 악용하여 HaProxy가 사용자 정의 규칙을 통해 차단하는 /admin 페이지에 접근할 수 있습니다. POC 요구 사항 Docker 🐳 Docker compose 🐳 환경 포트 8000...

Rocky Linux 9 [CIQ] Security Update: haproxy / haproxy-debuginfo / haproxy-debugsource (crlsa-2025_21693)

The Rocky Linux 9 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-202521693 advisory. haproxy: denial of service vulnerability in HAProxy mjson library CVE-2025-11230 Tenable has extracted the preceding description block directly from the CIQ securi...

Rocky Linux 9 [CIQ] Security Update: haproxy / haproxy-debuginfo / haproxy-debugsource Multiple Vulnerabilities (crlsa-2026_55772)

The Rocky Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-202655772 advisory. haproxy: HAProxy: Denial of Service via HPACK dynamic table insertions CVE-2026-55204 haproxy: HAProxy: Response smuggling due to integer overflow in...

AlmaLinux 9.2 [TuxCare] Security Update: haproxy (ALMALINUX9.2:CLSA-2026:1782744931)

The AlmaLinux 9.2 host has a package installed that is affected by a vulnerability as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1782744931 advisory. - HAProxy through 3.4.0, fixed in commit 5985276, contains an integer overflow vulnerability in the fcgiconn structure's drl field that allow...

Rocky Linux 10.2 [CIQ] Security Update: haproxy / haproxy-debuginfo / haproxy-debugsource Multiple Vulnerabilities (crlsa-2026_55679)

The Rocky Linux 10.2 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-202655679 advisory. haproxy: HAProxy: Denial of Service via HPACK dynamic table insertions CVE-2026-55204 haproxy: HAProxy: Response smuggling due to integer overflow in...

AlmaLinux 9.2 [TuxCare] Security Update: haproxy (ALMALINUX9.2:CLSA-2025:1764324159)

The AlmaLinux 9.2 host has a package installed that is affected by a vulnerability as referenced in the TuxCare ALMALINUX9.2:CLSA-2025:1764324159 advisory. - Inefficient algorithm complexity in mjson in HAProxy allows remote attackers to cause a denial of service via specially crafted JSON...

Rocky Linux 10.1 [CIQ] Security Update: haproxy / haproxy-debuginfo / haproxy-debugsource (crlsa-2025_21691)

The Rocky Linux 10.1 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-202521691 advisory. haproxy: denial of service vulnerability in HAProxy mjson library CVE-2025-11230 Tenable has extracted the preceding description block directly from the CIQ...

Rocky Linux 8 [CIQ] Security Update: haproxy / haproxy-debuginfo / haproxy-debugsource (crlsa-2026_55859)

The Rocky Linux 8 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-202655859 advisory. haproxy: HAProxy: Denial of Service via HPACK dynamic table insertions CVE-2026-55204 Tenable has extracted the preceding description block directly from the CIQ...

AlmaLinux 9.6 [TuxCare] Security Update: haproxy (ALMALINUX9.6:CLSA-2026:1782820521)

The AlmaLinux 9.6 host has a package installed that is affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1782820521 advisory. - HAProxy through 3.4.0, fixed in commit 9a6d1fe, contains a null pointer dereference vulnerability in hpackdhtinsert within src/hpack-tbl.c...

AlmaLinux 9.2 [TuxCare] Security Update: haproxy (ALMALINUX9.2:CLSA-2026:1783527210)

The AlmaLinux 9.2 host has a package installed that is affected by a vulnerability as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1783527210 advisory. - HAProxy through 3.4.0, fixed in commit 9a6d1fe, contains a null pointer dereference vulnerability in hpackdhtinsert within src/hpack-tbl.c...

Rocky Linux 9.6 [CIQ] Security Update: haproxy (ciqsa-2026_1393)

The Rocky Linux 9.6 host has a package installed that is affected by a vulnerability as referenced in the CIQ ciqsa-20261393 advisory. This advisory aggregates security fixes for the haproxy SRPM in CIQ LTS 9.6. It addresses 1 CVE: CVE-2025-32464. Tenable has extracted the preceding description...

Rocky Linux 8 [CIQ] Security Update: haproxy / haproxy-debuginfo / haproxy-debugsource (crlsa-2024_8849)

The Rocky Linux 8 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-20248849 advisory. haproxy: untrimmed URI fragments may lead to exposure of confidential data on static servers CVE-2023-45539 Tenable has extracted the preceding description block...

AlmaLinux 9.2 [TuxCare] Security Update: haproxy (ALMALINUX9.2:CLSA-2025:1736284126)

The AlmaLinux 9.2 host has a package installed that is affected by a vulnerability as referenced in the TuxCare ALMALINUX9.2:CLSA-2025:1736284126 advisory. - An information leak vulnerability was discovered in HAProxy 2.1, 2.2 before 2.2.27, 2.3, 2.4 before 2.4.21, 2.5 before 2.5.11, 2.6 before...

Rocky Linux 9.6 [TuxCare] Security Update: haproxy (ALMALINUX9.6:CLSA-2026:1782820521)

The Rocky Linux 9.6 host has a package installed that is affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1782820521 advisory. - HAProxy through 3.4.0, fixed in commit 9a6d1fe, contains a null pointer dereference vulnerability in hpackdhtinsert within src/hpack-tbl....

CentOS Linux 8.5 [TuxCare] Security Update: haproxy (CENTOS8.5:CLSA-2026:1782825734)

The CentOS Linux 8.5 host has a package installed that is affected by a vulnerability as referenced in the TuxCare CENTOS8.5:CLSA-2026:1782825734 advisory. - HAProxy through 3.4.0, fixed in commit 9a6d1fe, contains a null pointer dereference vulnerability in hpackdhtinsert within src/hpack-tbl.c...

AlmaLinux 9.2 [TuxCare] Security Update: haproxy Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2025:1736503350)

The AlmaLinux 9.2 host has a package installed that is affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.2:CLSA-2025:1736503350 advisory. - HAProxy through 2.0.32, 2.1.x and 2.2.x through 2.2.30, 2.3.x and 2.4.x through 2.4.23, 2.5.x and 2.6.x before 2.6.15, 2.7.x befor...

AlmaLinux 9.6 [TuxCare] Security Update: haproxy (ALMALINUX9.6:CLSA-2026:1782725469)

The AlmaLinux 9.6 host has a package installed that is affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1782725469 advisory. - HAProxy through 3.4.0, fixed in commit 5985276, contains an integer overflow vulnerability in the fcgiconn structure's drl field that allow...