---
id: CVE-2026-113596
title: >-
  Webstudio before 0.256.0 Information Disclosure via tRPC publishedBuilds and
  findManyByIds
summary: >-
  Webstudio before 0.256.0 contains a missing authorization vulnerability that
  allows authenticated users to read other users' project data via the
  publishedBuilds and findManyByIds tRPC procedures. Attackers who know another
  user's projec…
severity: low
cvss: 3.1
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N'
cvssSource: cna
cwe:
  - CWE-639
vendor: webstudio-is
product: webstudio
affected:
  - webstudio < 0.256.0
published: '2026-10-20'
updated: '2026-10-20'
sourceUpdated: '2026-10-20T15:40:25.087Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-113596'
references:
  - url: 'https://github.com/webstudio-is/webstudio/issues/5621'
  - url: >-
      https://github.com/webstudio-is/webstudio/commit/348d049ed2763d2b6c3e00319fa9086ca67c8aa6
  - url: 'https://github.com/webstudio-is/webstudio/releases/tag/0.256.0'
    label: webstudio 0.256.0 Release Notes
  - url: >-
      https://github.com/webstudio-is/webstudio/blob/0.255.0/packages/project/src/trpc/project-router.ts
  - url: >-
      https://github.com/webstudio-is/webstudio/blob/0.255.0/packages/dashboard/src/db/projects.ts
  - url: >-
      https://www.vulncheck.com/advisories/webstudio-before-0.256.0-information-disclosure-via-trpc-publishedbuilds-and-findmanybyids
    label: >-
      VulnCheck Advisory: Webstudio before 0.256.0 Information Disclosure via
      tRPC publishedBuilds and findManyByIds
tags:
  - cve.org
ingestedAt: '2026-10-20T16:10:53.304Z'
---

## Overview

Webstudio before 0.256.0 contains a missing authorization vulnerability that allows authenticated users to read other users' project data via the publishedBuilds and findManyByIds tRPC procedures. Attackers who know another user's project UUID can query the /trpc handler to retrieve publish history, titles, domains, preview images, and latest builds.

## Affected

- `webstudio < 0.256.0`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.