Arbitrary Code Injection Affecting logto-1.39 package, versions *


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.07% (23rd percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about Arbitrary Code Injection vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-MINIMOSLATEST-LOGTO139-17247943
  • published9 Jun 2026
  • disclosed22 May 2026

Introduced: 22 May 2026

NewCVE-2026-41148  (opens in a new tab)
CWE-94  (opens in a new tab)

How to fix?

There is no fixed version for Minimos:latest logto-1.39.

NVD Description

Note: Versions mentioned in the description apply only to the upstream logto-1.39 package and not the logto-1.39 package as distributed by Minimos. See How to fix? for Minimos:latest relevant fixed versions and status.

Mermaid is a JavaScript tool that uses Markdown-inspired text to create and modify diagrams and charts. Versions 10.9.5 and prior, in addition to 11.0.0-alpha.1 through 11.12.0 are vulnerable to CSS injection through improper sanitization. The state diagram (and any other diagram type that routes user-controlled style strings through the createCssStyles parser) captures classDef values using an unrestricted regex that matches everything up to a newline. That value then flows unsanitized through addStyleClass() into createCssStyles() and is assigned to style.innerHTML, so a closing brace (}) in the value terminates the generated CSS selector and turns everything after it into a new CSS rule on the page. This enables page defacement, user tracking via url() callbacks, and DOM attribute exfiltration. This issue has been fixed in versions 10.9.6 and 11.15.0. If developers are unable to immediately upgrade, they can work around this issue by setting "securityLevel": "sandbox", which prevents the issue by rendering the mermaid diagram in a sandboxed <iframe>.