CVE-2026-113596
Webstudio before 0.256.0 Information Disclosure via tRPC publishedBuilds and findManyByIds
webstudio-is webstudio
CVSS
2.3LowExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.29%Chance of exploitation activity in the next 30 days, higher than 20% of CVEs. Scored 23 Oct 2026FIRST EPSS
What fixes it
- 0.256.0webstudioCVE List
A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.
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.
Text from CVE List
Affected versions 1
- webstudioaffected: all versions before 0.256.0CVE List
References 6
- github.com/webstudio-is/webstudio/commit/348d049ed2763d2b6c3e00319fa9086ca67c8aa6Fixvia CVE List
- github.com/webstudio-is/webstudio/releases/tag/0.256.0Fixvia CVE List
- vulncheck.com/advisories/webstudio-before-0.256.0-information-disclosure-via-trpc-publishedbuilds-and-findmanybyidsAdvisoryvia CVE List
- github.com/webstudio-is/webstudio/issues/5621Referencevia CVE List
- github.com/webstudio-is/webstudio/blob/0.255.0/packages/project/src/trpc/project-router.tsReferencevia CVE List
- github.com/webstudio-is/webstudio/blob/0.255.0/packages/dashboard/src/db/projects.tsReferencevia CVE List