CVE-2026-16763: serverless-localstack 1.0, 1.1, 1.2, 1.3, 1.4.0

CVE-2026-16763. CVSS 3.1 base score 5.3 (MEDIUM, Vendor/CNA). EPSS 0.01224 (percentile 0.68562), scored 22-Oct-2026.

Affected technology

serverless-localstack · 1.0, 1.1, 1.2, 1.3, 1.4.0
localstack

Description’s affected range: up to 1.4.0

Component: Configuration Handler
Function: of
File: src/index.js

Attack conditions (VulDB, CVSS 4.0): Local · Low privileges required · No user interaction required

What an attacker can do

VulDB’s CVSS 4.0 assessment (base score 1.9/10) rates confidentiality, integrity and availability impact as low. The description does not specify what an attacker can achieve beyond these rated impacts.

Published 24-Oct-2026 15:08 UTC

CWE: CWE-77, CWE-78
CCR priority: 21.5 /100 (P4)
CVSS 3.1: 5.3 /10 · CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L · Vendor/CNA
EPSS: 0.01224 · percentile 0.6861 · 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-2026-16763.html