P4Verified

CVE-2026-54386: marimo 0 to before 0.23.9

CVE-2026-54386. CVSS 3.1 base score 6.1 (MEDIUM, Vendor/CNA). EPSS 0.00395 (percentile 0.31479), scored 2026-10-06.

Affected technology

marimo · 0 to before 0.23.9
marimo-team

Description’s affected range: before 0.23.9

Component: Not specified by the source
File: query

Attack conditions (Vendor/CNA, CVSS 4.0): Network (remote) · No privileges required · Active user interaction

What an attacker can do

Unauthenticated attackers can inject arbitrary JavaScript by exploiting improper escaping of single quotes in the file query parameter reflected into an inline JavaScript string literal. Vendor/CNA’s CVSS 4.0 assessment (base score 5.1/10) rates confidentiality, integrity and availability impact as none.

Published 2026-10-08 17:35:04.715116+00:00

CWE: CWE-79
CCR priority: 24.5 /100 (P4)
CVSS 3.1: 6.1 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N · Vendor/CNA
EPSS: 0.00395 · percentile 0.31583 · 2026-10-08
KEV: no

Provenance

FIRST EPSS daily exploit-probability · Source record · observed 2026-10-08 17:36:22.845483+00:00 UTC
NVD CVE API 2.0 · Source record · observed 2026-10-08 17:32:11.049884+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-54386.html