getarcaneapp arcane up to 1.19.1 variables REGISTRY/IMAGE/DATABASE_URL/SECRET_KEY authorization

Summaryinfo

A vulnerability was found in getarcaneapp arcane up to 1.19.1 and classified as critical. Affected is an unknown function of the file /api/environments/{id}/templates/variables. Such manipulation of the argument REGISTRY/IMAGE/DATABASE_URL/SECRET_KEY leads to authorization. This vulnerability is uniquely identified as CVE-2026-47125. The attack can be launched remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in getarcaneapp arcane up to 1.19.1 and classified as critical. Affected by this issue is an unknown code of the file /api/environments/{id}/templates/variables. The manipulation of the argument REGISTRY/IMAGE/DATABASE_URL/SECRET_KEY with an unknown input leads to a authorization vulnerability. Using CWE to declare the problem leads to CWE-862. The product does not perform an authorization check when an actor attempts to access a resource or perform an action. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Arcane is an interface for managing Docker containers, images, networks, and volumes. Prior to 1.19.2, the PUT /api/environments/{id}/templates/variables endpoint, which writes the system-wide .env.global file used for variable substitution in every project's compose file, is missing an admin authorization check. Any authenticated non-admin user can call this endpoint with their bearer token or API key and overwrite the global environment variables that are merged into every project deployment. By overriding values like REGISTRY, IMAGE, DATABASE_URL, or SECRET_KEY that other users reference via ${VAR} in compose files, an attacker can redirect image pulls to attacker-controlled registries (supply-chain RCE on the Docker host), exfiltrate database credentials, or disrupt all projects. This vulnerability is fixed in 1.19.2.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-47125 since 05/18/2026. The exploitation is known to be easy. The attack may be launched remotely. Technical details are known, but there is no available exploit.

Upgrading to version 1.19.2 eliminates this vulnerability.

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Productinfo

Vendor

• getarcaneapp

Name

• arcane

Version

• 1.19.0
• 1.19.1

Website

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

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