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CVE-2026-96627— Arcane: Delegated users:update permission allows admin account takeover via password reset (no privilege-hierarchy check)

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 是一个用于管理 Docker 容器、镜像、网络和卷的接口。在 2.6.0 版本之前， 文件中的 函数在为任何目标设置 时，未对调用者与目标的权限进行比较。因此，拥有 委托权限的用户可以提交针对全局管理员的密码修改请求，从而替换管理员密码并以该账户身份进行认证，最终导致全局管理员账户被完全接管。此问题已在 2.6.0 版本中修复。

CVSS 8.8 · High

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-96627

Vulnerability Information
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Vulnerability Title
Arcane: Delegated users:update permission allows admin account takeover via password reset (no privilege-hierarchy check)
Source: CVE Program / CVE List V5
Vulnerability Description
Arcane is an interface for managing Docker containers, images, networks, and volumes. Prior to 2.6.0, UpdateUser in backend/api/handlers/users.go sets PasswordHash for any target without comparing caller and target privilege. A holder of delegated users:update permission can submit a password change for the global administrator, replace the administrator password, and authenticate as that account, resulting in complete global administrator account takeover. This issue is fixed in version 2.6.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
特权授予不正确
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
getarcaneapp arcane < 2.6.0 -

II. Public POCs for CVE-2026-96627

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III. Intelligence Information for CVE-2026-96627

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Patches & Fixes for CVE-2026-96627 (1)

Vendor Advisories for CVE-2026-96627 (1)

Vendor Pages for CVE-2026-96627 (1)

Same Patch Batch · getarcaneapp · 2026-10-16 · 3 CVEs total

CVE-2026-96626 8.5 HIGH Arcane: Container-registry credential exfiltration via URL repoint + test to attacker host
CVE-2026-96628 4.3 MEDIUM Arcane: Environment access token bypasses the admin-required authorization gate on `/api/d

IV. Related Vulnerabilities

Same product: arcane
Same vendor: getarcaneapp
Same weakness: CWE-266

V. Comments for CVE-2026-96627

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