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CVE PROGRAM SOURCE RECORD7.2 High

CVE-2026-40242

Arcane Unauthenticated SSRF with Conditional Response Reflection in Template Fetch Endpoint

Description

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 products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

getarcaneapp arcane

  • < 1.17.3affected

References