CVE-2026-26080 - Vulnerability Details - OpenCVE

HAProxy Community Edition 3.2.x through 3.3.x before 3.3.3 can enter a loop or crash because varint is mishandled. HAProxy Enterprise and ALOHA are also affected.

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact Low

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

Vendors	Products
Haproxy	Haproxy

No data.

No data.

References

Link	Providers
https://git.haproxy.org/?p=haproxy-3.2.git;a=commit;h=5bb098ce8a656ec5711b4de3e4c87f12b216e7a1
https://www.haproxy.org

History

Mon, 20 Jul 2026 19:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Mon, 20 Jul 2026 16:15:00 +0000

Type	Values Removed	Values Added
Description		HAProxy Community Edition 3.2.x through 3.3.x before 3.3.3 can enter a loop or crash because varint is mishandled. HAProxy Enterprise and ALOHA are also affected.
First Time appeared		Haproxy Haproxy haproxy
Weaknesses		CWE-252
CPEs		cpe:2.3:a:haproxy:haproxy::::::::
Vendors & Products		Haproxy Haproxy haproxy
References		https://git.haproxy.org/?p=haproxy-3.2.git;a=commit;h=5bb098ce8a656ec5711b4de3e4c87f12b216e7a1 https://www.haproxy.org
Metrics		cvssV3_1 `{'score': 3.7, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L'}`

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2026-07-20T00:00:00.000Z

Updated: 2026-07-20T18:16:43.967Z

Reserved: 2026-02-11T00:00:00.000Z

Link: CVE-2026-26080

Vulnrichment

Updated: 2026-07-20T18:16:36.877Z

NVD

No data.

Redhat

No data.

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