HAProxy Community Edition 3.0 through 3.3 before 3.3.3 lacks a length check for the NEW_TOKEN format. HAProxy Enterprise and ALOHA are also affected.
Advisories
Source ID Title
Debian DSA Debian DSA DSA-6130-1 haproxy security update
Ubuntu USN Ubuntu USN USN-8036-1 HAProxy vulnerability
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

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:3.0r1:1.0.0-337.363:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.0r1:1.0.0-337.390:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.0r1:1.0.0-337.394:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.0r1:1.0.0-339.395:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.0r1:1.0.0-339.405:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.0r1:1.0.0-339.415:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.0r1:1.0.0-339.455:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.0r1:1.0.0-339.466:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.0r1:1.0.0-339.471:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.0r1:1.0.0-341.475:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.0r1:1.0.0-342.482:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.0r1:1.0.0-344.495:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.0r1:1.0.0-344.503:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.0r1:1.0.0-344.561:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.0r1:1.0.0-344.564:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.0r1:1.0.0-344.591:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.0r1:1.0.0-344.608:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.0r1:1.0.0-344.641:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.0r1:1.0.0-344.655:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.0r1:1.0.0-344.672:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.0r1:1.0.0-345.673:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.0r1:1.0.0-346.792:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.0r1:1.0.0-346.795:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.0r1:1.0.0-346.800:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.0r1:1.0.0-346.803:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.0r1:1.0.0-346.810:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.0r1:1.0.0-346.834:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.0r1:1.0.0-347.835:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.0r1:1.0.0-348.870:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.0r1:1.0.0-348.875:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.0r1:1.0.0-349.880:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.0r1:1.0.0-349.883:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.0r1:1.0.0-349.885:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.0r1:1.0.0-349.903:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.0r1:1.0.0-349.916:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.0r1:1.0.0-350.918:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.0r1:1.0.0-350.928:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.1r1:1.0.0-345.233:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.1r1:1.0.0-346.274:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.1r1:1.0.0-346.287:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.1r1:1.0.0-347.299:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.1r1:1.0.0-347.338:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.1r1:1.0.0-347.362:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.1r1:1.0.0-347.405:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.1r1:1.0.0-347.419:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.1r1:1.0.0-347.431:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.1r1:1.0.0-347.449:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.1r1:1.0.0-348.519:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.1r1:1.0.0-349.585:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.1r1:1.0.0-350.593:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.1r1:1.0.0-350.602:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.1r1:1.0.0-350.625:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.1r1:1.0.0-350.633:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.1r1:1.0.0-351.652:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.1r1:1.0.0-352.687:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.1r1:1.0.0-353.690:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.1r1:1.0.0-353.692:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.1r1:1.0.0-353.715:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.1r1:1.0.0-353.730:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.1r1:1.0.0-354.732:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy_enterprise:3.1r1:1.0.0-354.743:*:*:*:*:*:*
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

Thu, 30 Jul 2026 20:15:00 +0000

Type Values Removed Values Added
Title Potential Memory Corruption Due to Unchecked NEW_TOKEN Length in HAProxy

Mon, 27 Jul 2026 20:30:00 +0000

Type Values Removed Values Added
Title Potential Memory Corruption Due to Unchecked NEW_TOKEN Length in HAProxy

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

Type Values Removed Values Added
Title HAProxy Missing Length Check for NEW_TOKEN Leads to Potential Memory Corruption

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

Type Values Removed Values Added
Title HAProxy Missing Length Check for NEW_TOKEN Leads to Potential Memory Corruption

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 3.0 through 3.3 before 3.3.3 lacks a length check for the NEW_TOKEN format. HAProxy Enterprise and ALOHA are also affected.
First Time appeared Haproxy
Haproxy haproxy
Weaknesses CWE-130
CPEs cpe:2.3:a:haproxy:haproxy:*:*:*:*:*:*:*:*
Vendors & Products Haproxy
Haproxy haproxy
References
Metrics cvssV3_1

{'score': 4.8, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-07-20T18:18:45.876Z

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

Link: CVE-2026-26081

cve-icon Vulnrichment

Updated: 2026-07-20T18:18:40.560Z

cve-icon NVD

Status : Analyzed

Published: 2026-07-20T16:16:57.203

Modified: 2026-08-25T15:43:31.907

Link: CVE-2026-26081

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-07-30T20:00:20Z

Weaknesses