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.
Published: 2026-07-20
Score: 3.7 Low
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Tue, 25 Aug 2026 16:00:00 +0000

Type Values Removed Values Added
First Time appeared Haproxy aloha
Haproxy haproxy Enterprise
CPEs cpe:2.3:a:haproxy:aloha:*:*:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.2r1:1.0.0-353.334:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.2r1:1.0.0-353.336:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.2r1:1.0.0-353.347:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.2r1:1.0.0-353.355:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.2r1:1.0.0-353.376:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.2r1:1.0.0-353.385:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.2r1:1.0.0-353.398:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.2r1:1.0.0-354.402:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.2r1:1.0.0-354.439:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.2r1:1.0.0-358.439:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.2r1:1.0.0-359.440:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.2r1:1.0.0-360.460:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.2r1:1.0.0-362.473:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.2r1:1.0.0-363.476:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.2r1:1.0.0-363.478:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.2r1:1.0.0-363.498:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.2r1:1.0.0-363.511:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.2r1:1.0.0-365.529:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.2r1:1.0.0-365.531:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.2r1:1.0.0-365.545:*:*:*:*:*:*
Vendors & Products Haproxy aloha
Haproxy haproxy Enterprise

Mon, 03 Aug 2026 01:45:00 +0000

Type Values Removed Values Added
Title Varint Handling Bug Causes Infinite Loop or Crash in HAProxy Community Edition

Sun, 26 Jul 2026 08:00:00 +0000

Type Values Removed Values Added
Title HAProxy Varint Handling Loop and Crash Vulnerability

Tue, 21 Jul 2026 21:30:00 +0000

Type Values Removed Values Added
Title HAProxy Varint Handling Loop and Crash Vulnerability

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
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'}

Subscriptions

Haproxy Aloha Haproxy Haproxy Enterprise
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

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

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

Link: CVE-2026-26080

cve-icon Vulnrichment

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

cve-icon NVD

Status : Analyzed

Published: 2026-07-20T16:16:57.057

Modified: 2026-08-25T15:43:56.200

Link: CVE-2026-26080

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-03T01:30:16Z

Weaknesses