CVE-2026-86114
Arcane versions before 2.0.0 fail to properly restrict template operations, allowing default user role accounts to create, modify, and delete compose templates including instance-wide defaults. Attackers can inject malicious container configurations with privileged settings or host path mounts that execute with administrative privileges when deployed by administrators.
Weakness
Arcane versions before 2.0.0 fail to properly restrict template operations, allowing default user role accounts to create, modify, and delete compose templates including instance-wide defaults. Attackers can inject malicious container configurations with privileged settings or host path mounts that execute with administrative privileges when deployed by administrators.
References
- https://github.com/geo-chen/oss/blob/main/arcane.md
- https://github.com/getarcaneapp/arcane
- https://github.com/getarcaneapp/arcane/blob/v1.19.5/backend/api/handlers/templates.go
- https://github.com/getarcaneapp/arcane/commit/1500646aa91f
- https://github.com/getarcaneapp/arcane/releases/tag/v2.0.0
- https://www.vulncheck.com/advisories/arcane-before-2.0.0-missing-administrator-authorization-on-the-compose-template-mutation-endpoints
Find the bug before an attacker does.
Sign in with GitHub and run your first audit in under a minute. The free plan needs no credit card.