# CVE-2026-54319: Daytona path traversal in sandbox volume host mount construction

Source: https://junglewise.ai/threats/cve-2026-54319-daytona-path-traversal-in-sandbox-volume-host-mount-construction  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-06-23. Updated: 2026-06-23  
License: CC BY 4.0 with a link back

CVE-2026-54319 · Severity: medium · CVSS 4.2 · Published 2026-06-23

Daytona is a platform used to run AI-generated code and automated agent workflows in secure, isolated environments. A vulnerability was identified where the system did not properly restrict how storage volumes were mapped to the host server, which could theoretically allow a user to access data belonging to other users. However, because the system validates these requests against a database using strict ID formats, the issue was not exploitable in any released versions.

Technologies: [Daytona](https://junglewise.ai/threats/technologies/daytona), [github.com/daytonaio/daytona (Go)](https://junglewise.ai/threats/technologies/github-com-daytonaio-daytona). Vendors: [Daytona](https://junglewise.ai/threats/vendors/daytona), [Go](https://junglewise.ai/threats/vendors/go).

## Quick answers

**Is CVE-2026-54319 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-54319 being exploited in the wild.

**How severe is CVE-2026-54319?** Medium severity, with a CVSS score of 4.2, published 23 June 2026.

**Which products and versions are affected?** Daytona < 0.186.0; github.com/daytonaio/daytona (Go) <= 0.185.0, SEMVER:introduced=0,fixed=0.186.0.

**Is there a fix for CVE-2026-54319?** Yes. github.com/daytonaio/daytona (Go): upgrade to 0.186.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-54319 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-54319?** Check whether you run Daytona or github.com/daytonaio/daytona (Go) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- github.com/daytonaio/daytona (Go): upgrade to 0.186.0 or later

  ```sh
  go get github.com/daytonaio/daytona@v0.186.0
  ```


## Technical details

A path traversal vulnerability exists in Daytona's runner component where a sandbox volume reference (volumeId) was used to construct host bind-mount source paths without proper confinement. An attacker could theoretically use traversal sequences to mount host paths outside the intended per-volume directory, potentially leading to cross-tenant data access. In practice, the vulnerability was not exploitable in released versions because the volumeId is validated against a database as a UUID before reaching the runner, causing traversal payloads to fail validation. The fix in version 0.186.0 ensures volume references are resolved to canonical UUIDs server-side and that the runner strictly confines mount sources to the volume base directory.

## Affected products

- Daytona Daytona < 0.186.0

## Identifiers

- CVE-2026-54319
- GHSA-fjv8-j4p5-cr9m
- GO-2026-5367

## Timeline

- 2026-06-17: advisory: GitHub Security Advisory published
- 2026-06-23: disclosed: CVE published to NVD
- 2026-06-23: patched: Fix released in version 0.186.0

## References

- [https://github.com/daytonaio/daytona/security/advisories/GHSA-fjv8-j4p5-cr9m](https://github.com/daytonaio/daytona/security/advisories/GHSA-fjv8-j4p5-cr9m)

## Related threats

- [Daytona IDOR in organization role update and delete endpoints](https://junglewise.ai/threats/cve-2026-54322-daytona-idor-in-organization-role-update-and-delete-endpoints)
- [Daytona incorrect authorization in sandbox preview proxy](https://junglewise.ai/threats/cve-2026-54321-daytona-incorrect-authorization-in-sandbox-preview-proxy)
- [Daytona improper authentication in organization invitation acceptance](https://junglewise.ai/threats/cve-2026-54320-daytona-improper-authentication-in-organization-invitation)
- [Daytona cross-tenant authorization bypass in notification WebSocket gateway](https://junglewise.ai/threats/cve-2026-54324-daytona-cross-tenant-authorization-bypass-in-notification)
- [Daytonaio Daytona improper TLS certificate validation in git clone](https://junglewise.ai/threats/cve-2026-54323-daytonaio-daytona-improper-tls-certificate-validation-in-git)