CVE-2026-110354: HAProxy, отказ на услуга

Описание

Оригинално описание

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.

Засегнати продукти

• HAProxy HAProxy: 3.0.0 преди 3.0.30; 3.2.0 преди 3.2.26; 3.3.0 преди 3.3.17; 3.4.0 преди 3.4.6; 3.5-dev преди 3.5-dev9
• HAProxy HAProxy Enterprise Edition: 3.0r1 преди 3.0r1-362.1441; 3.2r1 преди 3.2r1-378.1259; 3.3r1 преди 3.3r1-377.1005
• HAProxy Technologies HAProxy Kubernetes Ingress Controller: 3.2.0 преди 3.2.17
• HAProxy Technologies Kubernetes Ingress Controller Enterprise: 3.2.0 преди 3.2.17-ee1; 3.0 преди 3.0.16-ee17; 1.11 преди 1.11.14-ee11

Вид слабост

• CWE-835 Loop with Unreachable Exit Condition

История

Други уязвимости в HAProxy HAProxy

• 7.5CVE-2026-110353
• 7.5CVE-2026-90678
• 3.7CVE-2026-26080
• 4.8CVE-2026-26081
• 8.7CVE-2026-55204

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-110354
• https://nvd.nist.gov/vuln/detail/CVE-2026-110354
• https://git.haproxy.org/?p=haproxy.git;a=commit;h=077906da140a35873bf451d7e9f67646c9f37c81