synced 9 MIN AGO
01 Record

CVE-2026-109575

In HAProxy Data Plane API 2.2.0 through 3.4.3 (and corresponding Enterprise Edition releases), Server.ConfigureAPI() has process-global authentication logic that improperly drops security controls

CriticalPUBLISHEDCNA: mitre
CNA base score9.8 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
View raw JSON

02 Description

In HAProxy Data Plane API 2.2.0 through 3.4.3 (and corresponding Enterprise Edition releases), Server.ConfigureAPI() has process-global authentication logic that improperly drops security controls

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.35% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 28.9% of scored records. A rank, not a probability.
NVD base score
9.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Awaiting Analysis. NVD last modified this record on 2026-10-16.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-10-12 19:32Z16 DAYS AGO
Last updated
2026-10-13 15:59Z15 DAYS AGO
Reserved
2026-10-12
Assigning CNA
mitre
Record state
PUBLISHED
Severity
Critical (CVSS 9.8)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
  • CWE-306Missing Authentication for Critical FunctionBase
Data version
5.2
Document digest
75bce2473fb437c49388753b4efe016d01672ce3f51ffc7116449bdba107ae44

05 Affected products

VendorProductVersionsPlatforms
HAProxyData Plane API EE2.2.0-ee1 to 2.9.28-ee1, 3.0-ee to 3.0.24-ee1, 3.1-ee to 3.2.16-ee1, 3.3-ee to 3.3.8-ee1, 3.4-ee to 3.4.3-ee2—
HAProxyData Plane API CE2.2.0 to 2.9.28, 3.0.0 to 3.0.24, 3.1.0 to 3.2.16, 3.3.0 to 3.3.8, 3.4.0 to 3.4.3—

06 References