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.
{
"cna_assigner": "VulnCheck",
"cwe_ids": [
"CWE-639"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/113xxx/CVE-2026-113596.json"
}{
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"fixed": "0.256.0"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
},
{
"range": [
{
"fixed": "348d049ed2763d2b6c3e00319fa9086ca67c8aa6"
}
],
"source": "REFERENCES_COMMIT"
},
{
"original_tag": "0.256.0",
"range": [
{
"fixed": "831aab74d190498e6f3bd93a5259cba327905791"
}
],
"source": "REFERENCES_TAG"
}
]
}