MEDIUM

CVE-2026-26081

CVSS v3

4.8

MEDIUM

EPSS Score

0.5 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

haproxyBitnamifrom 3.0.0 · fixed in 3.0.16

Vendor advisories

CVE-2026-26081 Red Hat Product Security3 products fixed · 23 known affected
haproxy: HAProxy: Data integrity and availability vulnerability in NEW_TOKEN format
haproxy.src as a component of Red Hat Ceph Storage 5 · haproxy22 as a component of Red Hat Ceph Storage 5 · rhceph/rhceph-haproxy-rhel8 as a component of Red Hat Ceph Storage 5
RHSA-2026:40938 Red Hat Product Security3 products fixed
Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

Full record on NVD

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.

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L
Published: 2026-07-20
Last Modified: 2026-07-21

Frequently asked questions

What is 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.

Is CVE-2026-26081 actively exploited?

Active exploitation of CVE-2026-26081 has not been confirmed. Its EPSS score was 0.5% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-26081?

CVE-2026-26081 has a CVSS v3 base score of 4.8 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L.

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