UBUNTU-CVE-2026-71437

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/CVE-2026-71437
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-71437.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-71437
Upstream
Published
2026-08-07T00:00:00Z
Modified
2026-08-07T17:45:30.977921927Z
Severity
  • 6.5 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:H/SI:H/SA:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Mermaid is a JavaScript tool that uses Markdown-inspired text to create and modify diagrams and charts. From version 11.5.0 until 11.16.1, Mermaid Architecture Diagrams are vulnerable to prototype pollution when a diagram defines a group with an id of proto. Because the group id is used directly as an object property key without validation, an attacker who can supply diagram text can pollute Object.prototype, potentially affecting the behavior of the embedding application. This issue is fixed in version 11.16.1.

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_version": "8.13.8+~cs10.4.16-1",
            "binary_name": "node-mermaid"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-71437.json"