UBUNTU-CVE-2026-50159

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Source
https://ubuntu.com/security/CVE-2026-50159
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-50159.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-50159
Upstream
Published
2026-08-06T22:17:00Z
Modified
2026-08-13T00:08:18Z
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. Prior to 10.9.8 and 11.16.1, Mermaid is vulnerable to CSS injection via sibling combinator selectors generated from diagram-supplied class or id names. An attacker who can supply diagram text can inject arbitrary CSS into the rendered page, potentially altering the appearance or behavior of unrelated page elements. This issue is fixed in versions 10.9.8 and 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
0 Unknown 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-2026-50159.json"