Low 3.1Published Oct 20, 2026

CVE-2026-113596Webstudio before 0.256.0 Information Disclosure via tRPC publishedBuilds and findManyByIds

Updated under an hour ago (2026-10-21 09:10 UTC)

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It affects webstudio-is webstudio. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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.

CVSS: 3.1 LOW (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness (CWE): CWE-639
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Deferred
Record last updated: Oct 20, 2026
First seen by InfoSec Signals: Oct 20, 2026

Affected products

Affected products

webstudio-is webstudio webstudio_is:webstudio (from the name)	before 0.256.0	CNA record

References

https://github.com/webstudio-is/webstudio/issues/5621issue-tracking
https://github.com/webstudio-is/webstudio/commit/348d049ed2763d2b6c3e00319fa9086ca67c8aa6patch
https://github.com/webstudio-is/webstudio/releases/tag/0.256.0release-notes
https://github.com/webstudio-is/webstudio/blob/0.255.0/packages/project/src/trpc/project-router.tstechnical-description
https://github.com/webstudio-is/webstudio/blob/0.255.0/packages/dashboard/src/db/projects.tstechnical-description
https://www.vulncheck.com/advisories/webstudio-before-0.256.0-information-disclosure-via-trpc-publishedbuilds-and-findmanybyidsthird-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.