CVE-2026-54319Network attack vector

Host path bind-mount via unconstrained volume reference

Published Jun 23, 2026 · Updated Jun 23, 2026

Path traversal defense gap in Daytona before 0.186 lets remote authenticated users submit sandbox volume references for runner mounts. The runner uses the forwarded reference to construct a host bind-mount source without confining the resolved path to the per-volume base directory. Released builds reject traversal strings during database UUID validation before mount construction, so the vendor reproduced only a server-side validation error and no cross-tenant access.

CVSS severity4.2
Medium
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal defense gap in Daytona before 0.186 lets remote authenticated users submit sandbox volume references for runner mounts. The runner uses the forwarded reference to construct a host bind-mount source without confining the resolved path to the per-volume base directory. Released builds reject traversal strings during database UUID validation before mount construction, so the vendor reproduced only a server-side validation error and no cross-tenant access.

The record

CVE
CVE-2026-54319
Published
Jun 23, 2026
Updated
Jun 23, 2026
Vendor
Daytona
Product
Daytona
Classifications
CWE-22, CWE-269, CWE-250
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 23, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 23, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 0.186

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Daytona · Daytonaversion=< 0.186

Published CVSS scores

4.2GitHub, Inc.CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-269Improper Privilege Management
CWE-250Execution with Unnecessary Privileges

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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