CVE-2026-54324 Daytona: Cross-tenant data leak in notification WebSocket gateway via unverified organizationId join
Authenticated users can subscribe to other organizations' notification channels, leaking sensitive realtime events due to missing authorization checks.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-54324?
CVE-2026-54324 is a medium-severity missing authorization vulnerability in daytonaio daytona, published on 23 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Daytona is a secure and elastic infrastructure runtime for AI-generated code execution and agent workflows. Prior to 0.185.0, 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. This vulnerability is fixed in 0.185.0.
Which versions are affected by CVE-2026-54324?
3 open source packages ship an affected version, including github.com/daytonaio/daytona.
| Package | Affected | Fixed in |
|---|---|---|
github.com/daytonaio/daytona Go | All versions | 0.185.0 |
github.com/daytonaio/daytona Go | All versions | 0.185.0 |
github.com/daytonaio/daytona Go | All versions | 0.185.0 |
How do I fix CVE-2026-54324?
Upgrade github.com/daytonaio/daytona to 0.185.0 or later.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-54324 being exploited?
There is no known exploitation of CVE-2026-54324 in the wild and no public exploit code.
Sources
Also known as GHSA-qwxf-2m7m-2m3x, GO-2026-5598.