CVE-2026-5418 MEDIUM

CVE-2026-5418: appsmithorg appsmith Dashboard WebClientUtils.java computeDisallowedHosts server-side request forgery

Vendor Appsmithorg
Product appsmith
Weakness CWE-918 · SSRF
Published April 2, 2026
Last update April 3, 2026

CVSS base score

6.9/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

What the vulnerability does

Description

A vulnerability was identified in appsmithorg appsmith up to 1.97. Impacted is the function computeDisallowedHosts of the file app/server/appsmith-interfaces/src/main/java/com/appsmith/util/WebClientUtils.java of the component Dashboard. Such manipulation leads to server-side request forgery. The attack may be launched remotely. The exploit is publicly available and might be used. Upgrading to version 1.99 is recommended to address this issue. The affected component should be upgraded. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

Key dates

Disclosure timeline

April 2, 2026 CVE published
April 3, 2026 Record updated