CVE-2026-40242
Arcane is an interface for managing Docker containers, images, networks, and volumes. Prior to 1.17.3, the /api/templates/fetch endpoint accepts a caller-supplied url parameter and performs a server-side HTTP GET request to that URL without authentication and without URL scheme or host validation. The server's response is returned directly to the caller. type. This constitutes an unauthenticated SSRF vulnerability affecting any publicly reachable Arcane instance. This vulnerability is fixed in 1.17.3.
- CVSS 3.1
- 6.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N - EPSS
- 0.6% chance of exploitation in the next 30 days; higher than 49% of CVEs (scores of 2026-10-26)
- CWE
- CWE-918
- Published
- Modified
- Record from
- the NVD, synced
Affected
- getarcane:arcane
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-ff24-4prj-gpmj | Go | github.com/getarcaneapp/arcane/backend | <1.17.3 | 1.17.3 |
| GO-2026-5356 | Go | github.com/getarcaneapp/arcane/backend | <1.17.3 | 1.17.3 |