CVE-2026-110354
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
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 drains the request before closing the stream, the parser repeatedly re-processes the same bytes without making progress. The affected thread stays busy at 100% CPU after timeouts expire and after the client disconnects, and repeated requests can consume all worker threads until the process is restarted.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
HAProxy
- Vendor
- HAProxy
- Product
- HAProxy
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 3.0.0 | affected | custom | 3.0.30 | Unavailable | None listed |
| 3.2.0 | affected | custom | 3.2.26 | Unavailable | None listed |
| 3.3.0 | affected | custom | 3.3.17 | Unavailable | None listed |
| 3.4.0 | affected | custom | 3.4.6 | Unavailable | None listed |
| 3.5-dev | affected | custom | 3.5-dev9 | Unavailable | None listed |
HAProxy Enterprise Edition
- Vendor
- HAProxy
- Product
- HAProxy Enterprise Edition
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 3.0r1 | affected | custom | 3.0r1-362.1441 | Unavailable | None listed |
| 3.2r1 | affected | custom | 3.2r1-378.1259 | Unavailable | None listed |
| 3.3r1 | affected | custom | 3.3r1-377.1005 | Unavailable | None listed |
HAProxy Kubernetes Ingress Controller
- Vendor
- HAProxy Technologies
- Product
- HAProxy Kubernetes Ingress Controller
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 3.2.0 | affected | custom | 3.2.17 | Unavailable | None listed |
Kubernetes Ingress Controller Enterprise
- Vendor
- HAProxy Technologies
- Product
- Kubernetes Ingress Controller Enterprise
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 3.2.0 | affected | custom | 3.2.17-ee1 | Unavailable | None listed |
| 3.0 | affected | custom | 3.0.16-ee17 | Unavailable | None listed |
| 1.11 | affected | custom | 1.11.14-ee11 | Unavailable | None listed |