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CVE-2026-41148 Mermaid: Improper sanitization of `classDefs` in diagrams leads to CSS injection

🗓️ 22 May 2026 22:03:50Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 13 Views

CVE-2026-41148 Mermaid CSS injection via classDefs; fixed in 10.9.6/11.15.0; sandbox workaround.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-41148
22 May 202622:03
attackerkb
Chainguard
CVE-2026-41148 vulnerabilities
18 May 202619:18
cgr
Circl
CVE-2026-41148
11 May 202617:37
circl
CNNVD
Mermaid 代码注入漏洞
22 May 202600:00
cnnvd
CVE
CVE-2026-41148
22 May 202622:03
cve
Debian CVE
CVE-2026-41148
22 May 202622:03
debiancve
EUVD
EUVD-2026-31515
22 May 202622:03
euvd
Github Security Blog
Mermaid: Improper sanitization of `classDefs` in diagrams leads to CSS injection
11 May 202619:36
github
NVD
CVE-2026-41148
22 May 202623:16
nvd
OSV
CGA-964H-X7QW-8V4G
18 May 202619:32
osv
Rows per page
[
  {
    "vendor": "mermaid-js",
    "product": "mermaid",
    "versions": [
      {
        "version": ">= 11.0.0-alpha.1, < 11.15.0",
        "status": "affected"
      },
      {
        "version": "< 10.9.6",
        "status": "affected"
      }
    ]
  }
]

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