CVE-2026-26081

Published Jul 20, 2026 CVSS 3.1 · 4.8 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
Debian DSA Debian DSA DSA-6130-1 haproxy security update
Ubuntu USN Ubuntu USN USN-8036-1 HAProxy vulnerability
History
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
Type Values Removed Values Added
Title Potential Memory Corruption Due to Unchecked NEW_TOKEN Length in HAProxy
Type Values Removed Values Added
Title Potential Memory Corruption Due to Unchecked NEW_TOKEN Length in HAProxy
Type Values Removed Values Added
Title HAProxy Missing Length Check for NEW_TOKEN Leads to Potential Memory Corruption
Type Values Removed Values Added
Title HAProxy Missing Length Check for NEW_TOKEN Leads to Potential Memory Corruption
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Jul 20, 2026, 6:18 PM
Reserved
Feb 11, 2026, 12:00 AM
Status
Analyzed
Published
Jul 20, 2026, 4:16 PM
Modified
Aug 25, 2026, 3:43 PM