# CVE-2026-47357: Tenable Terrascan SSRF and local file read in remote directory scan

Source: https://junglewise.ai/threats/cve-2026-47357-tenable-terrascan-ssrf-and-local-file-read-in-remote-directory  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-05-19. Updated: 2026-05-19  
License: CC BY 4.0 with a link back

CVE-2026-47357 · Severity: high · CVSS 7.5 · Published 2026-05-19

Terrascan, a tool used to scan Infrastructure as Code for security violations, contains a vulnerability in its server mode that allows unauthorized remote attackers to access sensitive local files. By sending a specially crafted request to the scanning service, an attacker can trick the system into reading internal configuration files or stealing stored credentials. This could lead to a full compromise of the server or the cloud environments it manages. Because the project is archived, no official security updates will be released.

Technologies: [Tenable Terrascan](https://junglewise.ai/threats/technologies/terrascan). Vendors: [Tenable](https://junglewise.ai/threats/vendors/tenable).

## Quick answers

**Is CVE-2026-47357 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-47357 being exploited in the wild.

**How severe is CVE-2026-47357?** High severity, with a CVSS score of 7.5, published 19 May 2026.

**Which products and versions are affected?** Tenable Terrascan v1.18.3 and prior.

**Is there a fix for CVE-2026-47357?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-47357 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-47357?** Check whether you run Tenable Terrascan at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

Terrascan's remote directory scan endpoint (POST /v1/{iac}/{iacVersion}/{cloud}/remote/dir/scan) is vulnerable to Server-Side Request Forgery (SSRF) when running in server mode. An unauthenticated remote attacker can provide a malicious URL via the 'remote_url' parameter, which is passed without validation to the 'hashicorp/go-getter' library. By leveraging the 'X-Terraform-Get' response header, an attacker can force the server to redirect the request to a 'file://' URL, enabling local file disclosure. Furthermore, because 'go-getter' has 'Netrc' enabled by default, it may read and transmit credentials from the '~/.netrc' file to an attacker-controlled host. The project was archived in 2023 and no patch is available; users should avoid running Terrascan in server mode on untrusted networks.

## Affected products

- Tenable Terrascan v1.18.3 and prior

## Timeline

- 2023-08-01: other: Project archived by maintainer
- 2026-05-19: disclosed: CVE published

## References

- [https://github.com/tenable/terrascan](https://github.com/tenable/terrascan)

## Related threats

- [Tenable Terrascan SSRF and local file read in server mode](https://junglewise.ai/threats/cve-2026-47358-tenable-terrascan-ssrf-and-local-file-read-in-server-mode)
- [Tenable Terrascan SSRF in file scan endpoint](https://junglewise.ai/threats/cve-2026-47356-tenable-terrascan-ssrf-in-file-scan-endpoint)