Is this vulnerability remotely exploitable?

Yes. Any attacker who can reach the affected proxy endpoint over the network can attempt to exploit it; no prior authentication is required in the described scenario.

What level of access does an attacker need to exploit this?

The attacker only needs network access to the application's public interface that exposes the Clerk frontend API proxy. They do not need valid user credentials or prior control of the system, though the impact is amplified if the attacker can observe or intercept exfiltrated traffic from their own infrastructure.

What is the safest general fix pattern for affected applications?

The most robust fix is to ensure the proxy helper builds requests only to a fixed, trusted Clerk API base URL, strictly validate any path components, and avoid including long-lived secrets in generic proxy flows. Additionally, rotate the compromised `Clerk-Secret-Key` and review any derived credentials or sessions.

Severity:

HIGH RISK

(7.4)

Server-Side Request Forgery (CWE-918) in Clerk Backend Proxy Leaking Secret Key

CVE-2026-34076

Published:

Apr 1, 2026

Status:

Awaiting Analysis

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:

Exposure of authentication secret and potential downstream account takeover

Severity:

HIGH RISK

(7.4)

CVSS Version:

3.1

Vulnerability Type

Category:

Server-Side Request Forgery (SSRF)

CWE:

CWE-918

Impact:

Exposure of authentication secret and potential downstream account takeover

Severity:

HIGH RISK

(7.4)

CVSS Version:

3.1

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355 Bryant St. San Francisco, CA 94107, USA

Ask AI for summary of CodeAnt

Server-Side Request Forgery (CWE-918) in Clerk Backend Proxy Leaking Secret Key

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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