# CVE-2026-26081: 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.

CVE-2026-26081 is fixed in 2 products on 1 platform, first by DSA-6130-1, released February 12, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-26081
- Priority: Routine
- CVSS: 4.8 (Moderate)
- EPSS: 0.0048
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Feb 11, 2026
- Weakness: Improper Handling of Length Parameter Inconsistency
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26081

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | haproxy Debian 13.5 (trixie) | 3.0.11-1+deb13u2 | [DSA-6130-1](https://patchblox.com/security/data/fix/linux/dsa-6130-1.md) | Feb 12, 2026 |
| Linux | haproxy Debian 14 | 3.2.11-2 | [DEBIAN-CVE-2026-26081](https://patchblox.com/security/data/fix/linux/debian-cve-2026-26081.md) | Jul 21, 2026 |
| Linux | haproxy Ubuntu 25.10 (questing) | 3.0.12-0ubuntu0.25.10.3 | [haproxy 3.0.12-0ubuntu0.25.10.3](https://patchblox.com/security/data/fix/linux/ubuntu-questing-haproxy-3.0.12-0ubuntu0.25.10.3.md) | Mar 12, 2026 |
| Linux | haproxy opensuse-leap 16.0 | 3.2.12+git0.6011f448e-160000.1.1 | [OPENSUSE-SU-2026:20290-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20290-1.md) | Feb 27, 2026 |
| Linux | haproxy sles 16.0 | 3.2.12+git0.6011f448e-160000.1.1 | [SUSE-SU-2026:20616-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-20616-1.md) | Feb 27, 2026 |
| Linux | vim-haproxy Ubuntu 25.10 (questing) | 3.0.12-0ubuntu0.25.10.3 | [vim-haproxy 3.0.12-0ubuntu0.25.10.3](https://patchblox.com/security/data/fix/linux/ubuntu-questing-vim-haproxy-3.0.12-0ubuntu0.25.10.3.md) | Mar 12, 2026 |

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Data as of 2026-11-09T01:18:40Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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