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CVE-2026-54319

Daytona is a secure and elastic infrastructure runtime for AI-generated code execution and agent workflows. Prior to 0.1

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.

MEDIUM · CVSS 4.2
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
No Sigma yet — build one → YARA rules0
Look this up elsewhere - one-click external pivots
NVDCVE.orgCISAExploit-DBGitHub PoCVulnCheck KEVGreyNoise
▸ How to read a CVE - triage first, then detect and patch
This page is every public fact about CVE-2026-54319, cross-linked. Its job is to answer one question fast - does this need my attention now? - and then hand you the two things you do about it. Here is how an analyst reads it.
Triage: should I act now? Four signals, and they are not interchangeable:
CVSSseverity - how bad it is IF exploited, 0-10. A high CVSS alone is not urgency; a flaw can be a perfect 10 and never actually be attacked. EPSSprobability - a model’s estimate of the chance it is exploited in the next 30 days, 0-1. This is the “will it actually happen” signal. CISA KEVconfirmed - it is being exploited in the wild right now. The strongest signal on the page; KEV beats any score. Weaponisedavailability - public exploits / PoCs, and especially Metasploit modules rated Excellent / Great. Reliable, packaged exploit code means low-skill attackers can use it today.
How they combine: KEV, or a dependable Metasploit module, means patch now regardless of CVSS. High CVSS + low EPSS + no exploit is real but not an emergency - schedule it. Low CVSS but KEV-listed still gets patched now. The verdict above already weighed these for you; this is how it got there.
Then what - two workflows:
Detectwhen you cannot patch today, follow this CVE to the ATT&CK techniques it enables, then Build a SIEM detection (the green button) - author a rule, test it in Atomic, deploy it. That buys visibility while the patch waits. PatchAffected products / packages tell you if you are exposed; Fixed versions by distribution and Vendor advisories give the exact version that closes it.
Reading order for the panels below: verdict + badges, then Public exploits / Metasploit (is it weaponised), then ATT&CK techniques + Sigma / IDS rules (can I detect it), then Affected products / packages + Fixed versions (am I exposed, what patches it), then Threat actors / IOCs (who uses it), then Scoring & timeline / references (the evidence).
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Severity & exploitation scoring

View on NVD →
CVSS base score
4.2
MEDIUMCVSS v3.1 · [email protected]
EPSS exploitation probability
n/a
No EPSS score in our data for this CVE. EPSS is published daily for scored CVEs - a very new, reserved, or rejected CVE may not have one yet.
CVSS metric silhouette
VectorComplexityPrivilegesInteractionScopeConfidentialityIntegrityAvailability
shape grows toward worst-case
SSVC triage
No SSVC vulnrichment for this CVE. CISA's Vulnrichment program scores newer CVEs (~2024 onwards) plus selected older critical ones. Use the EPSS probability + KEV status to triage instead.
CVSS vector breakdown
Exploitability - how they get in
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Impact - what breaks
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
VECTORCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
Attack path
Full kill chain
→
◆

ATT&CK techniques

1

Techniques this CVE enables. Pills with a solid outline are high confidence - named directly in ATT&CK or Nuclei, or human-curated by CTID; the rest are inferred from the weakness type using MITRE's CVE Mapping Methodology and the CWE → CAPEC chain. Broad, generic-weakness guesses are filtered out. A small N× marks a technique that N independent sources agree on.

T1005 · Data from Local System
▤ Build a SIEM detection for these techniques
▤

CAPEC attack patterns

11

Attack patterns this CVE enables - the bridge from weakness to ATT&CK technique.

CAPEC-CAPEC-104 · Cross Zone Scripting CAPEC-CAPEC-122 · Privilege Abuse CAPEC-CAPEC-126 · Path Traversal CAPEC-CAPEC-233 · Privilege Escalation CAPEC-CAPEC-470 · Expanding Control over the Operating System from the Database CAPEC-CAPEC-58 · Restful Privilege Elevation CAPEC-CAPEC-64 · Using Slashes and URL Encoding Combined to Bypass Validation Logic CAPEC-CAPEC-69 · Target Programs with Elevated Privileges CAPEC-CAPEC-76 · Manipulating Web Input to File System Calls CAPEC-CAPEC-78 · Using Escaped Slashes in Alternate Encoding CAPEC-CAPEC-79 · Using Slashes in Alternate Encoding
⬡

Weakness Classification

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

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
Go github.com/daytonaio/daytona MODERATE fixed in 0.186.0
▤

Related CVEs

8
CVEs linked to this one by a shared weakness (CWE) or affected product - joins on data already in the engine, with the reason shown per row.
CVE-2001-0054 Directory traversal vulnerability in FTP Serv-U before 2.5i allows remote attack... 1 same CWE-22 CVE-2001-0925 The default installation of Apache before 1.3.19 allows remote attackers to list... 4 same CWE-22 CVE-2001-0780 Directory traversal vulnerability in cosmicpro.cgi in Cosmicperl Directory Pro 2... 1 same CWE-22 CVE-2001-1432 Directory traversal vulnerability in Cherokee Web Server allows remote attackers... same CWE-22 CVE-2017-7518 A flaw was found in the Linux kernel before version 4.12 in the way the KVM modu... same CWE-250 MEDIUM CVE-2018-8853 Philips Brilliance CT devices operate user functions from within a contained kio... same CWE-250 HIGH CVE-2018-1087 kernel KVM before versions kernel 4.16, kernel 4.16-rc7, kernel 4.17-rc1, kernel... same CWE-250 HIGH CVE-2018-10856 It has been discovered that podman before version 0.6.1 does not drop capabiliti... same CWE-250 MEDIUM
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/daytonaio/daytona/security/advisories/GHSA-fjv8-j4p5-cr9m
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