How broadly exploitable is this SSRF bypass?

Exploitability depends on how Directus is configured and which features are exposed; it becomes meaningful when attackers can control or influence URLs used for server-initiated requests and when internal services are reachable from the Directus host.

Does an attacker need authenticated access to exploit this issue?

Not necessarily. Some deployments may expose functionality that triggers outbound requests without authentication, while others restrict such actions to authenticated users or specific roles. The key requirement is the ability to supply or modify the target URL.

What is the safest general fix pattern for this kind of vulnerability?

The most robust fix is to normalize all destination addresses, strictly block local and private networks (including IPv4-mapped IPv6 and other encodings), and, where possible, restrict outbound requests to a curated allow-list of domains or services.

Severity:

HIGH RISK

(7.7)

SSRF Protection Bypass via IPv4-Mapped IPv6 (CWE-918) in Directus Request Handling

CVE-2026-35409

Published:

Apr 6, 2026

Status:

Received

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

Recent Vulnerabilities

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

Remote Code Execution on the Router

April 6, 2026

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Remote Code Execution on Router Firmware

April 6, 2026

Vulnerability Type

Category:

Server-Side Request Forgery (SSRF)

CWE:

CWE-918

Impact:

Unauthorized access to internal or otherwise restricted network resources via SSRF

Severity:

HIGH RISK

(7.7)

CVSS Version:

3.1

Vulnerability Type

Category:

Server-Side Request Forgery (SSRF)

CWE:

CWE-918

Impact:

Unauthorized access to internal or otherwise restricted network resources via SSRF

Severity:

HIGH RISK

(7.7)

CVSS Version:

3.1

Catch This CVE While Code Is Being Written

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Ask AI for summary of CodeAnt

SSRF Protection Bypass via IPv4-Mapped IPv6 (CWE-918) in Directus Request Handling

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

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