Is this vulnerability remotely exploitable?

Yes. If the @tinacms/graphql endpoint is exposed over the network, a remote attacker can exploit this issue by sending crafted GraphQL mutations without needing local access to the server.

Does an attacker need to be authenticated to exploit this?

No. The vulnerability description specifies that unauthenticated users can trigger the issue, so any network-accessible user can attempt exploitation if the endpoint is reachable.

What is the safest general fix pattern for this type of bug?

The most robust fix is to strictly confine all file operations to a designated base directory: fully canonicalize the requested path, verify that it remains within the allowed directory tree, and reject any operation that attempts to escape that boundary. Additionally, separate sensitive project files from directories intended for user-driven content.

Severity:

HIGH RISK

(8.1)

Path Traversal File Overwrite (CWE-22) in Tina @tinacms/graphql

CVE-2026-33949

Published:

Apr 1, 2026

Status:

Undergoing 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:

Path Traversal / Arbitrary File Write

CWE:

CWE-22;CWE-73

Impact:

Arbitrary File Overwrite and Potential Command Execution

Severity:

HIGH RISK

(8.1)

CVSS Version:

3.1

Vulnerability Type

Category:

Path Traversal / Arbitrary File Write

CWE:

CWE-22;CWE-73

Impact:

Arbitrary File Overwrite and Potential Command Execution

Severity:

HIGH RISK

(8.1)

CVSS Version:

3.1

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Path Traversal File Overwrite (CWE-22) in Tina @tinacms/graphql

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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