CVE-2026-40242
High · 7.2CVSS
7.2
EPSS
0.7%
Published
Apr 10, 2026
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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