UBUNTU-CVE-2026-41149

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Source

https://ubuntu.com/security/CVE-2026-41149

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-41149.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-41149

Upstream

CVE-2026-41149

Published

2026-05-22T23:16:00Z

Modified

2026-05-27T19:09:50Z

Severity

5.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

Mermaid is a JavaScript tool that uses Markdown-inspired text to create and modify diagrams and charts. Versions 10.9.5 and earlier, as well as 11.0.0-alpha.1 through 11.14.0, are vulnerable to HTML injection under the default configuration. Specifically, the classDef directive in Mermaid state diagrams permits DOM injection that escapes the SVG context. However, <script> tags are stripped, which prevents cross-site scripting (XSS). 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>.

References

Affected packages

Ubuntu:22.04:LTS / node-mermaid

Package

Name: node-mermaid
Purl: pkg:deb/ubuntu/node-mermaid?arch=source&distro=jammy

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

8.*

8.7.0+ds+~cs27.17.17-3

8.13.3+ds+~cs26.13.21-1

8.13.3+ds+~cs26.13.21-2

8.13.8+~cs10.4.16-1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "node-mermaid",
            "binary_version": "8.13.8+~cs10.4.16-1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-41149.json"