CVE-2026-47357

CRITICAL EPSS 38.0%

Published May 19, 20261mo ago · Modified Jun 17, 20261w ago

9.2 CVSS 4.0

Critical

Published May 19, 2026 1mo ago

Last Modified Jun 17, 2026 1w ago

Description

Terrascan v1.18.3 and prior are vulnerable to Server-Side Request Forgery (SSRF) via the remote_url parameter in the remote directory scan endpoint (POST /v1/{iac}/{iacVersion}/{cloud}/remote/dir/scan) when running in server mode. An unauthenticated remote attacker can supply an attacker-controlled HTTP URL as remote_url with remote_type set to "http". The URL is passed directly to hashicorp/go-getter (v1.7.5) without validation. Go-getter's HttpGetter supports the X-Terraform-Get response header, allowing the attacker's server to redirect the download to a file:// URL, enabling local file read. Additionally, HttpGetter has Netrc set to true, causing it to read ~/.netrc and send stored credentials to attacker-controlled hostnames. This affects deployments running terrascan in server mode (terrascan server), which binds to 0.0.0.0 with no authentication. Note: Terrascan was archived in August 2023 and no patch will be released.

CVSS Details

Base Score

9.2

Exploitability

—

Impact

—

Vector string

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector Network

Attack Complexity Low

Privileges Required None

User Interaction None

Scope X

Threat Intelligence

EPSS Exploit Probability

38.0% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 3

CWE-610

CWE-73

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

Affected Products 1

Vendor	Product	Version	Range
tenable	terrascan	*	≤1.18.3

References 1

github.com https://github.com/tenable/terrascan

Product

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.