getarcaneapp Arcane up to 2.4.x Container Registry Service container_registry_service.go normalizeRegistryServerAddressInternal information disclosure

Summaryinfo

A vulnerability has been found in getarcaneapp Arcane up to 2.4.x and classified as problematic. The affected element is the function normalizeRegistryServerAddressInternal of the file backend/api/services/container_registry_service.go of the component Container Registry Service. Performing a manipulation results in information disclosure. This vulnerability is known as CVE-2026-96626. Remote exploitation of the attack is possible. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as problematic has been found in getarcaneapp Arcane up to 2.4.x. This affects the function normalizeRegistryServerAddressInternal of the file backend/api/services/container_registry_service.go of the component Container Registry Service. The manipulation with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. The summary by CVE is:

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.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-96626 since 09/23/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. The exploitation requires an enhanced level of successful authentication. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

Upgrading to version 2.5.0 eliminates this vulnerability.

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Productinfo

Vendor

• getarcaneapp

Name

• Arcane

Version

• 2.0
• 2.1
• 2.2
• 2.3
• 2.4

Website

• Product: https://github.com/getarcaneapp/arcane/

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