CVE•Published 2026-04-10•Modified 2026-04-13•1 article on news•7 live references•NVD data
CVE-2026-40242
Vulnerability data via NVD (ingested)
CVSS v3.1
7.2
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
EPSS percentile
—
Weaknesses (CWE)
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.
Timeline
Published 2026-04-10
Modified 2026-04-13
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
More intel sources (5)
Shodan report
vuln:CVE-2026-40242Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-40242Censys host search filtered to this CVE id.
grep.app
CVE-2026-40242Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-40242GitHub code search for direct mentions.
Google dork
"CVE-2026-40242" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-40242 on GitHub.