Red Hat Security Advisory 2026-55861-03

Red Hat Security Advisory 2026-55861-03 - An update for haproxy is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On. Issues addressed include a denial of service vulnerability...

Red Hat Security Advisory 2026-55803-03

Red Hat Security Advisory 2026-55803-03 - An update for haproxy is now available for Red Hat Enterprise Linux 9.6 Extended Update Support. Issues addressed include denial of service and integer overflow vulnerabilities...

Red Hat Security Advisory 2026-55860-03

Red Hat Security Advisory 2026-55860-03 - An update for haproxy is now available for Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions and Red Hat Enterprise Linux 8.8 Telecommunications Update Service. Issues addressed include a denial of service vulnerability...

Red Hat Security Advisory 2026-55862-03

Red Hat Security Advisory 2026-55862-03 - An update for haproxy is now available for Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On. Issues addressed include a denial of service vulnerability...

RHEL 9 : haproxy (RHSA-2026:55772)

The remote Redhat Enterprise Linux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2026:55772 advisory. The haproxy packages provide a reliable, high-performance network load balancer for TCP and HTTP-based applications. Security Fixes: haprox...

RHEL 8 : haproxy (RHSA-2026:55861)

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2026:55861 advisory. The haproxy packages provide a reliable, high-performance network load balancer for TCP and HTTP-based applications. Security Fixes: haproxy: HAProx...

RockyLinux 8 : haproxy (RLSA-2026:55859)

The remote RockyLinux 8 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2026:55859 advisory. haproxy: HAProxy: Denial of Service via HPACK dynamic table insertions CVE-2026-55204 Tenable has extracted the preceding description block directly from the...

Red Hat Security Advisory 2026-55801-03

Red Hat Security Advisory 2026-55801-03 - An update for haproxy is now available for Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions. Issues addressed include denial of service and integer overflow vulnerabilities...

RockyLinux 10 : haproxy (RLSA-2026:55679)

The remote RockyLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:55679 advisory. haproxy: HAProxy: Denial of Service via HPACK dynamic table insertions CVE-2026-55204 haproxy: HAProxy: Response smuggling due to integer overflow in...

Oracle Linux 9 : haproxy (ELSA-2026-55772)

The remote Oracle Linux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the ELSA-2026-55772 advisory. - Fix NULL pointer dereference in hpackdhtinsert CVE-2026-55204 Resolves: RHEL-211082 Tenable has extracted the preceding description block directly...

RHEL 8 : haproxy (RHSA-2026:55859)

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2026:55859 advisory. The haproxy packages provide a reliable, high-performance network load balancer for TCP and HTTP-based applications. Security Fixes: haproxy: HAProx...

RHEL 8 : haproxy (RHSA-2026:55860)

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2026:55860 advisory. The haproxy packages provide a reliable, high-performance network load balancer for TCP and HTTP-based applications. Security Fixes: haproxy: HAProx...

AlmaLinux 8 : haproxy (ALSA-2026:55859)

The remote AlmaLinux 8 host has a package installed that is affected by a vulnerability as referenced in the ALSA-2026:55859 advisory. haproxy: HAProxy: Denial of Service via HPACK dynamic table insertions CVE-2026-55204 Tenable has extracted the preceding description block directly from the...

RHEL 10 : haproxy (RHSA-2026:55679)

The remote Redhat Enterprise Linux 10 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2026:55679 advisory. The haproxy packages provide a reliable, high-performance network load balancer for TCP and HTTP-based applications. Security Fixes:...

AlmaLinux 9 : haproxy (ALSA-2026:55772)

The remote AlmaLinux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the ALSA-2026:55772 advisory. haproxy: HAProxy: Denial of Service via HPACK dynamic table insertions CVE-2026-55204 haproxy: HAProxy: Response smuggling due to integer overflow in...

Oracle Linux 10 : haproxy (ELSA-2026-55679)

The remote Oracle Linux 10 host has a package installed that is affected by multiple vulnerabilities as referenced in the ELSA-2026-55679 advisory. - Fix uint16t overflow in FCGI demux record length CVE-2026-55203 Resolves: RHEL-211068 Tenable has extracted the preceding description block directl...

Red Hat Security Advisory 2026-55802-03

Red Hat Security Advisory 2026-55802-03 - An update for haproxy is now available for Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions. Issues addressed include denial of service and integer overflow vulnerabilities...

Red Hat Security Advisory 2026-55679-03

Red Hat Security Advisory 2026-55679-03 - An update for haproxy is now available for Red Hat Enterprise Linux 10. Issues addressed include denial of service and integer overflow vulnerabilities...

Important: Red Hat Security Advisory: haproxy security update

An update for haproxy is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from t...

haproxy: HAProxy: Denial of Service via HPACK dynamic table insertions

A flaw was found in HAProxy. An attacker can trigger HPACK dynamic table insertions under memory pressure, leading to a null pointer dereference in the hpackdhtinsert function. This can cause HAProxy worker processes to crash, resulting in a denial of service DoS...