CVE-2026-54321: Daytona: Public sandbox previews remain accessible for up to one hour after being made private

June 16, 2026 (updated July 20, 2026)

Sandbox previews that were switched from public to private could remain reachable without authentication for a short period after the change, due to a cached visibility state that was not invalidated when the sandbox’s visibility changed.

References

github.com/advisories/GHSA-ww63-pv5x-vfc8
github.com/daytonaio/daytona/security/advisories/GHSA-ww63-pv5x-vfc8
nvd.nist.gov/vuln/detail/CVE-2026-54321

Code Behaviors & Features

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