Synopsis
Important: haproxy security update
Description
The haproxy packages provide a reliable, high-performance network load balancer for TCP and HTTP-based applications.
Security Fix(es):
* haproxy: HAProxy: Denial of Service via HPACK dynamic table insertions (CVE-2026-55204)
* haproxy: HAProxy: Response smuggling due to integer overflow in FastCGI record length handling (CVE-2026-55203)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Affected products
Rocky Linux 9 aarch64
Rocky Linux 9 ppc64le
Rocky Linux 9 s390x
Rocky Linux 9 x86_64
Fixes
2490518
2490522
CVEs
CVE-2026-55203
CVE-2026-55204
Affected packages
Rocky Linux 9 aarch64 - AppStream
haproxy-0:2.8.14-3.el9_8.2.aarch64.rpm
haproxy-0:2.8.14-3.el9_8.2.src.rpm
haproxy-debuginfo-0:2.8.14-3.el9_8.2.aarch64.rpm
haproxy-debugsource-0:2.8.14-3.el9_8.2.aarch64.rpm
Rocky Linux 9 ppc64le - AppStream
haproxy-0:2.8.14-3.el9_8.2.ppc64le.rpm
haproxy-0:2.8.14-3.el9_8.2.src.rpm
haproxy-debuginfo-0:2.8.14-3.el9_8.2.ppc64le.rpm
haproxy-debugsource-0:2.8.14-3.el9_8.2.ppc64le.rpm
Rocky Linux 9 s390x - AppStream
haproxy-0:2.8.14-3.el9_8.2.s390x.rpm
haproxy-0:2.8.14-3.el9_8.2.src.rpm
haproxy-debuginfo-0:2.8.14-3.el9_8.2.s390x.rpm
haproxy-debugsource-0:2.8.14-3.el9_8.2.s390x.rpm
Rocky Linux 9 x86_64 - AppStream
haproxy-0:2.8.14-3.el9_8.2.src.rpm
haproxy-0:2.8.14-3.el9_8.2.x86_64.rpm
haproxy-debuginfo-0:2.8.14-3.el9_8.2.x86_64.rpm
haproxy-debugsource-0:2.8.14-3.el9_8.2.x86_64.rpm