CVE-2026-47179Network attack vector

Authenticated file disclosure via unchecked Compose includes

Published May 29, 2026 · Updated May 29, 2026

Path traversal in Arcane before 1.19.4 allows remote authenticated users to read backend-accessible files through project file APIs. ProjectService.CreateProject stores unvalidated Compose include paths, and GetProjectFileContent returns matching include content before containment checks run. Any user-role account can read files available to the backend, including Arcane's credential database, enabling account escalation and host control where Docker access is exposed.

CVSS severity7.7
High
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in Arcane before 1.19.4 allows remote authenticated users to read backend-accessible files through project file APIs. ProjectService.CreateProject stores unvalidated Compose include paths, and GetProjectFileContent returns matching include content before containment checks run. Any user-role account can read files available to the backend, including Arcane's credential database, enabling account escalation and host control where Docker access is exposed.

The record

CVE
CVE-2026-47179
Published
May 29, 2026
Updated
May 29, 2026
Vendor
Arcane
Product
Arcane
Classifications
CWE-22, T1005
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 29, 2026CVE publishedPublication date reported by the CVE source.
  2. May 29, 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=< 1.19.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Arcane · Arcaneversion=< 1.19.4

Published CVSS scores

7.7GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/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')
T1005Data from Local System

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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