CVE-2026-113596

Webstudio before 0.256.0 Information Disclosure via tRPC publishedBuilds and findManyByIds

Published Oct 20, 2026 CVSS 4.0 · 2.3 Low EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Webstudio-is
Webstudio-is webstudio
Vendors & Products Webstudio-is
Webstudio-is webstudio
Type Values Removed Values Added
Description 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.
Title Webstudio before 0.256.0 Information Disclosure via tRPC publishedBuilds and findManyByIds
Weaknesses CWE-639
References
Metrics cvssV3_1

{'score': 3.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N'}

cvssV4_0

{'score': 2.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Oct 23, 2026, 1:43 AM
Reserved
Oct 20, 2026, 11:48 AM
Status
Deferred
Published
Oct 20, 2026, 4:17 PM
Modified
Oct 23, 2026, 2:16 AM