CVE-2026-54324Medium· 6.5▾ SunlitDaytona: Cross-tenant data leak in notification WebSocket gateway via unverified organizationId join
▾ Sunlit zone — Low / medium · no exploitation signal
impact 35.8 · likelihood 0.1 · exploitation 0
Need a working PoC? Pro members can cast a request and our team develops one — it lands right here.
Exploit-prediction probability, daily snapshots since Jul 30.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via GHSA
0.3%
0.3% → 0.5%
A cross-tenant authorization flaw in Daytona's notification WebSocket gateway allowed any authenticated user to subscribe to another organization's realtime notification channel and passively receive that organization's events.
The notification gateway's JWT handshake joined a client-supplied organization identifier to the corresponding notification room without verifying that the authenticated user was a member of that organization. As a result, an authenticated user could receive another organization's realtime sandbox, snapshot, volume, and runner events, including data carried in those events. This is a cross-tenant confidentiality break. It required a valid account and knowledge of the target organization id (a non-secret UUID); no elevated privileges were needed. The API-key authentication path was not affected.
The affected component is the Daytona API service (the apps/api NestJS application). It is distributed through Daytona's repository releases and container images for self-hosted deployments; it is not published as a Go or npm package, so the advisory will not surface through go get or npm dependency tooling.
= 0.101.0, <= 0.184.0
0.185.0
@vnth4nhnt from CyStack
github.com/daytonaio/daytona <= 0.184.0Upgrade to a patched release:
github.com/daytonaio/daytona 0.185.0Connected by shared product, vendor, weakness, or advisory.
CVE-2026-54321High· 7.0Daytona: Public sandbox previews remain accessible for up to one hour after being made private
CVE-2026-54322High· 7.7Daytona: Cross-org IDOR in organization role update/delete — any org owner can rewrite or destroy another org's roles
CVE-2026-54319Medium· 4.2Daytona: Path traversal in sandbox volume id mounts arbitrary host paths into the sandbox — cross-tenant data access and host escape
CVE-2025-12288Medium· 4.3A vulnerability was detected in Bdtask Pharmacy Management System up to 9.4
CVE-2025-12283Medium· 4.3A security flaw has been discovered in code-projects Client Details System 1.0
CVE-2026-102139Medium· 6.5An authorization check in the large file exchange feature of Kiteworks Email Protection Gateway did not correctly establish that the requesting user was a party to the package being requested