Server-side Request Forgery (SSRF) Affecting github.com/getarcaneapp/arcane/backend/internal/services package, versions <1.17.3
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-GOLANG-GITHUBCOMGETARCANEAPPARCANEBACKENDINTERNALSERVICES-16318387
- published28 Apr 2026
- disclosed10 Apr 2026
- creditmsoneri
Introduced: 10 Apr 2026
CVE-2026-40242 Â (opens in a new tab)How to fix?
Upgrade github.com/getarcaneapp/arcane/backend/internal/services to version 1.17.3 or higher.
Overview
Affected versions of this package are vulnerable to Server-side Request Forgery (SSRF) via the url parameter in the /api/templates/fetch endpoint, which performs a server-side HTTP GET request without authentication or validation of the URL scheme or host. An attacker can access internal resources or sensitive information by supplying arbitrary URLs.