CVE-2026-16756: aws-smithy-http-server 0 through 0.66.4

CVE-2026-16756. CVSS 3.1 base score 7.5 (HIGH, Source advisory). EPSS 0.0075 (percentile 0.54446), scored 22-Oct-2026.

Affected technology

aws-smithy-http-server · 0 through 0.66.4
AWS

Component: Not specified by the source

Attack conditions (Source advisory, CVSS 4.0): Network (remote) · No privileges required · No user interaction required

What an attacker can do

Remote attackers might cause a denial of service by opening many connections and sending partial requests that are never completed, exhausting server sockets and tasks. Source advisory’s CVSS 4.0 assessment (base score 8.7/10) rates confidentiality and integrity impact as none; availability impact as high.

Published 24-Oct-2026 15:08 UTC

CWE: CWE-770
CCR priority: 30.2 /100 (P4)
CVSS 3.1: 7.5 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H · Source advisory
EPSS: 0.0075 · percentile 0.54517 · 2026-10-24
KEV: no

Provenance

FIRST EPSS daily exploit-probability · Source record · observed 2026-10-24 15:09:16.138216+00:00 UTC
NVD CVE API 2.0 · Source record · observed 2026-10-24 15:07:27.951960+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-16756.html