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Vulnerability record · CVE-2026-54321 · published 23 June 2026

CVE-2026-54321: Insufficient session expiration vulnerability

Daytona is a secure and elastic infrastructure runtime for AI-generated code execution and agent workflows. From 0.101.0 until 0.184.0, 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. This vulnerability is fixed in 0.184.0.

7.0 CVSS 3.1 High EPSS 0.40% · top 68.6% CWE-613 · Insufficient session expirationCWE-863 · Incorrect authorization Deferred
7.0CVSS 3.1 base score
0.40%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
1References
25 Jun 2026Last modified by NVD

Description

Daytona is a secure and elastic infrastructure runtime for AI-generated code execution and agent workflows. From 0.101.0 until 0.184.0, 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. This vulnerability is fixed in 0.184.0.

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:L

References

LinkTags
https://github.com/daytonaio/daytona/security/advisories/GHSA-ww63-pv5x-vfc8

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Source: NIST National Vulnerability Database (record CVE-2026-54321), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.