What is CVE-2026-40242?

CVE-2026-40242 is a high-severity vulnerability in Getarcaneapp Arcane, classified under Server-Side Request Forgery (SSRF). CVSS score: 7.2/10. Published 2026-04-10.

How severe is CVE-2026-40242?

High severity. CVSS v3 base score is 7.2 out of 10.

SSRF in Getarcaneapp Arcane

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 withou…

Vulnerability class: SSRF (Server-Side Request Forgery)

EPSS: 0.013 (79.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N.

Affected products

Getarcaneapp Arcane — versions < 1.17.3

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

References

https://github.com/getarcaneapp/arcane/security/advisories/GHSA-ff24-4prj-gpmj (x_refsource_CONFIRM)
https://github.com/getarcaneapp/arcane/releases/tag/v1.17.3 (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-40242?: CVE-2026-40242 is a high-severity vulnerability in Getarcaneapp Arcane, classified under Server-Side Request Forgery (SSRF). CVSS score: 7.2/10. Published 2026-04-10.
How severe is CVE-2026-40242?: High severity. CVSS v3 base score is 7.2 out of 10.