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Vulnerability record · CVE-2026-40242 · published 10 April 2026

CVE-2026-40242: Getarcane arcane server-side request forgery (ssrf) vulnerability

GGetarcane · Arcane

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.

6.5 CVSS 3.1 Medium EPSS 0.72% · top 47.9% CWE-918 · Server-side request forgery (SSRF)
6.5CVSS 3.1 base score
0.72%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References, 2 tagged exploit
17 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/getarcaneapp/arcane/releases/tag/v1.17.3 Release Notes
https://github.com/getarcaneapp/arcane/security/advisories/GHSA-ff24-4prj-gpmj ExploitVendor Advisory
https://github.com/getarcaneapp/arcane/security/advisories/GHSA-ff24-4prj-gpmj ExploitVendor Advisory

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Source: NIST National Vulnerability Database (record CVE-2026-40242), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.