Vulnerability · Published Jun 23, 2026 · Assigned by GitHub_M

CVE-2026-54319Daytona: Path traversal in sandbox volume id mounts arbitrary host paths into the sandbox — cross-tenant data access and host escape

Medium 4.2

In plain English

A medium-severity path traversal in daytona from daytonaio. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 16% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)4.2Medium

Exploit odds (30 days)0.2%top 84.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Daytona is a secure and elastic infrastructure runtime for AI-generated code execution and agent workflows. Prior to 0.186, a sandbox volume reference (volumeId, which may also be a volume name) was forwarded to the runner and used to build the host bind-mount source path without confinement. A reference containing path-traversal sequences could in principle resolve the mount source outside the intended per-volume base directory. This vulnerability is fixed in 0.186.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Go	github.com/daytonaio/daytona	0.186.0	GHSA-fjv8-j4p5-cr9m
Go	github.com/daytonaio/daytona	0.186.0	GO-2026-5367

Affected products (as reported)

Vendor	Product	Versions
daytonaio	daytona	< 0.186

Weakness: CWE-22, CWE-250, CWE-269 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N

References

https://github.com/daytonaio/daytona/security/advisories/GHSA-fjv8-j4p5-cr9m x_refsource_CONFIRM