Is this vulnerability remotely exploitable?

It can be remotely exploitable if the TinaCMS dev server is reachable over a network by untrusted users. When the server is bound only to localhost and used solely by the developer, the exposure is significantly reduced but still warrants fixing to avoid accidental misuse or future misconfiguration.

What level of access does an attacker need?

An attacker needs network access to the running `tinacms dev` server and the ability to send HTTP requests to its media endpoints. No additional authentication or CMS-level permissions may be required, depending on the project's configuration.

What is the safest general fix pattern for this issue?

The safest approach is to treat all path segments from HTTP requests as untrusted, normalize the path, and enforce that the resolved path is strictly within a predefined media root directory. Any request that attempts to escape this directory should be rejected before touching the filesystem.

Severity:

HIGH RISK

(8.4)

Path Traversal (CWE-22) in TinaCMS CLI Media Endpoints

CVE-2026-28793

Published:

Mar 12, 2026

Status:

Analyzed

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

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Vulnerability Type

Category:

Path Traversal

CWE:

CWE-22

Impact:

Arbitrary File Read/Write via HTTP Media Endpoints

Severity:

HIGH RISK

(8.4)

CVSS Version:

3.1

Vulnerability Type

Category:

Path Traversal

CWE:

CWE-22

Impact:

Arbitrary File Read/Write via HTTP Media Endpoints

Severity:

HIGH RISK

(8.4)

CVSS Version:

3.1

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Path Traversal (CWE-22) in TinaCMS CLI Media Endpoints

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

(8.6)

Server-Side Request Forgery (CWE-918) in OpenClaw Zalo Plugin sendPhoto

HIGH RISK

HIGH

(8.8)

Authorization Bypass (CWE-863) in OpenClaw Matrix Room Control Commands

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

Ship clean & secure code faster

Ship clean & secure code faster

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