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TI-2026-19287 Aliases CVE-2026-23944

Arcane allows unauthenticated proxy access to remote environments

Priority MEDIUM 43CWE-306Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-306.

Summary

Arcane is an interface for managing Docker containers, images, networks, and volumes. Prior to version 1.13.2, unauthenticated requests could be proxied to remote environment agents, allowing access to remote environment resources without authentication. The environment proxy middleware handled `/api/environments/{id}/...` requests for remote environments before authentication was enforced. When the environment ID was not local, the middleware proxied the request and attached the manager-held agent token, even if the caller was unauthenticated. This enabled unauthenticated access to remote environment operations (e.g., listing containers, streaming logs, or other agent endpoints). An unauthenticated attacker could access and manipulate remote environment resources via the proxy, potentially leading to data exposure, unauthorized changes, or service disruption. Version 1.13.2 patches the vulnerability.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00511 43rd percentileScored 2026-11-07
Fix Fixed arcane (getarcaneapp): 1.13.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
getarcaneapparcanebefore 1.13.21.13.2Patch availableCNA
  • arcane Vendorgetarcaneapp Affected before 1.13.2 Fixed in 1.13.2 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:arcane:arcane:*:*:*:*:*:*:*:*before 1.13.2VulnerableArcane
  • cpe:2.3:a:arcane:arcane:*:*:*:*:*:*:*:* Versions before 1.13.2 Vulnerable ·Arcane

Remediation

  • Fix · CNA arcane (getarcaneapp) Fixed in 1.13.2

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-23944

References

Patch 3

Other 1

  • TI-2026-33369 Missing authorization in getarcaneapp arcane CVSS 3.1CRITICAL 9.9
  • TI-2026-75557 Arcane users with delegated permission can take over admin accounts CVSS 3.1HIGH 8.8
  • TI-2026-34717 Arcane: Missing admin authorization on global variables endpoint CVSS 3.1HIGH 8.8
  • TI-2026-75556 Credential exfiltration in Arcane via registry URL repointing CVSS 3.1HIGH 8.5
  • TI-2026-33371 Arcane: Unauthenticated reflected XSS via SVG color parameter in /api/app-images/logo enables admin account takeover CVSS 3.1HIGH 8.2
  • TI-2026-34768 Arcane: Authenticated Arbitrary Host File Read via Docker Compose Include Directives in Arcane CVSS 3.1HIGH 7.7
See all 8 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences