01 Record
CVE-2026-110354
HAProxy 3 before 3.4.6 allows a remote unauthenticated attacker to cause a denial of service (persistent worker-thread CPU exhaustion) via an HTTP/1.1 chunked request. Although the H1 multiplexer
HighPUBLISHEDCNA: mitre
CNA base score7.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
02 Description
HAProxy 3 before 3.4.6 allows a remote unauthenticated attacker to cause a denial of service (persistent worker-thread CPU exhaustion) via an HTTP/1.1 chunked request. Although the H1 multiplexer
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- Not scored by EPSS
- EPSS percentile
- Not scored by EPSS
- NVD base score
- The NVD has published no score for this record
- NVD CVSS vector
- No NVD score to derive
- NVD analysis status
- Not recorded
- 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
- 2026-10-22 02:46Z1 HR AGO
- Last updated
- 2026-10-22 02:46Z1 HR AGO
- Reserved
- 2026-10-13
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.5)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-835Loop with Unreachable Exit Condition ('Infinite Loop')Base
- Data version
- 5.2
- Document digest
- b3b48c6961beafcc41fa3ddf186e010878024e5db6880428f629a1c88cb4f4a3
05 Affected products
VendorProductVersionsPlatforms
HAProxyHAProxy3.0.0 to < 3.0.30, 3.2.0 to < 3.2.26, 3.3.0 to < 3.3.17, 3.4.0 to < 3.4.6, 3.5-dev to < 3.5-dev9—
HAProxyHAProxy Enterprise Edition3.0r1 to < 3.0r1-362.1441, 3.2r1 to < 3.2r1-378.1259, 3.3r1 to < 3.3r1-377.1005—
HAProxy TechnologiesKubernetes Ingress Controller Enterprise3.2.0 to < 3.2.17-ee1, 3.0 to < 3.0.16-ee17, 1.11 to < 1.11.14-ee11—