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CVE-2026-23944— Arcane allows unauthenticated proxy access to remote environments

Quick assessment

Affected
getarcaneapp arcane
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

arcane是Arcane开源的一个Docker管理软件。 arcane 1.13.2之前版本存在访问控制错误漏洞，该漏洞源于环境代理中间件在强制执行身份验证之前处理对远程环境的请求，可能导致未经验证的请求被代理到远程环境代理，从而未经身份验证即可访问远程环境资源。

AI Predicted 9.8 Difficulty: Trivial EPSS 0.52% · P42
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I. Basic Information for CVE-2026-23944

Vulnerability Information
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Vulnerability Title
Arcane allows unauthenticated proxy access to remote environments
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
arcane 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
arcane是Arcane开源的一个Docker管理软件。 arcane 1.13.2之前版本存在访问控制错误漏洞，该漏洞源于环境代理中间件在强制执行身份验证之前处理对远程环境的请求，可能导致未经验证的请求被代理到远程环境代理，从而未经身份验证即可访问远程环境资源。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
getarcaneapp arcane < 1.13.2 -

II. Public POCs for CVE-2026-23944

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III. Intelligence Information for CVE-2026-23944

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Patches & Fixes for CVE-2026-23944 (1)

IV. Related Vulnerabilities

Same product: arcane
Same vendor: getarcaneapp
Same weakness: CWE-306

V. Comments for CVE-2026-23944

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