CVE record · CVE-2026-110354

Infinite loop in HAProxy and others

CVSS 7.5 HighEPSS 0.0081 · 56th percentile

Published by the CVE Program (CNA: mitre) at 22 Oct 2026, 02:46 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
HAProxy	HAProxy	affected 3.0.0 to before 3.0.30 custom affected 3.2.0 to before 3.2.26 custom affected 3.3.0 to before 3.3.17 custom affected 3.4.0 to before 3.4.6 custom affected 3.5-dev to before 3.5-dev9 custom Other versions: unaffected
HAProxy	HAProxy Enterprise Edition	affected 3.0r1 to before 3.0r1-362.1441 custom affected 3.2r1 to before 3.2r1-378.1259 custom affected 3.3r1 to before 3.3r1-377.1005 custom Other versions: unaffected
HAProxy Technologies	HAProxy Kubernetes Ingress Controller	affected 3.2.0 to before 3.2.17 custom Other versions: unaffected
HAProxy Technologies	Kubernetes Ingress Controller Enterprise	affected 3.2.0 to before 3.2.17-ee1 custom affected 3.0 to before 3.0.16-ee17 custom affected 1.11 to before 1.11.14-ee11 custom Other versions: unaffected

Identifiers: CVE-2026-110354
CNA: mitre
Weakness (CWE): CWE-835
Tags: HAProxy
HAProxy Enterprise Edition
HAProxy Technologies HAProxy Kubernetes Ingress Controller
HAProxy Technologies Kubernetes Ingress Controller Enterprise
Denial of service
Published: 22 Oct 2026
Updated: 22 Oct 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
7.5	High	3.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	CNA (mitre)

CISA KEV Not listed.
EPSS 0.0081, the 56th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 22 Oct 2026. New records show when each source confirmed them.

Sources

References from the CNA

git.haproxy.org/?p=haproxy.git;a=commit;h=077906da140a35873bf451d7e9f67646c9f37c81 vendor-advisory

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.