---
id: CVE-2026-96626
title: >-
  Arcane: Container-registry credential exfiltration via URL repoint + test to
  attacker host
summary: >-
  Arcane is an interface for managing Docker containers, images, networks, and
  volumes. Prior to 2.5.0, UpdateRegistry and TestRegistry in
  backend/api/services/container_registry_service.go allow the registry URL to
  change while preserving…
severity: high
cvss: 8.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N'
cvssSource: cna
cwe:
  - CWE-200
  - CWE-522
vendor: getarcaneapp
product: arcane
affected:
  - arcane < 2.5.0
published: '2026-10-16'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T21:07:39.570Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-96626'
references:
  - url: >-
      https://github.com/getarcaneapp/arcane/security/advisories/GHSA-9pxc-cxp5-qp54
    label: >-
      https://github.com/getarcaneapp/arcane/security/advisories/GHSA-9pxc-cxp5-qp54
  - url: 'https://github.com/getarcaneapp/arcane/pull/3317'
    label: 'https://github.com/getarcaneapp/arcane/pull/3317'
  - url: >-
      https://github.com/getarcaneapp/arcane/commit/fe31693634f48f295a7d77d091085b331cf9e915
    label: >-
      https://github.com/getarcaneapp/arcane/commit/fe31693634f48f295a7d77d091085b331cf9e915
  - url: 'https://github.com/getarcaneapp/arcane/releases/tag/backend/v2.5.0'
    label: 'https://github.com/getarcaneapp/arcane/releases/tag/backend/v2.5.0'
tags:
  - cve.org
ingestedAt: '2026-10-16T21:53:23.701Z'
---

## Overview

Arcane is an interface for managing Docker containers, images, networks, and volumes. Prior to 2.5.0, UpdateRegistry and TestRegistry in backend/api/services/container_registry_service.go allow the registry URL to change while preserving the stored encrypted token. When a holder of registries:update and registries:test repoints a generic registry URL without supplying a replacement token, TestRegistry decrypts the preserved token and RegistryLogin sends it to the attacker-controlled host because normalizeRegistryServerAddressInternal does not restrict the destination. This exposes the stored container-registry PAT or password and can enable image access or tampering. This issue is fixed in version 2.5.0.

## Affected

- `arcane < 2.5.0`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.