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CVE-2026-21866

🗓️ 03 Mar 2026 21:42:25Reported by GitHub_MType 
cve
 cve
🔗 web.nvd.nist.gov👁 15 Views

Dify chat stored XSS via Mermaid diagrams due to loose security level, fixed in version 1.11.2.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-21866
3 Mar 202621:42
attackerkb
CNNVD
dify 跨站脚本漏洞
3 Mar 202600:00
cnnvd
Cvelist
CVE-2026-21866 Dify - Stored XSS in chat
3 Mar 202621:42
cvelist
EUVD
EUVD-2026-9325
3 Mar 202621:42
euvd
NVD
CVE-2026-21866
3 Mar 202622:16
nvd
OSV
CVE-2026-21866 Dify - Stored XSS in chat
3 Mar 202621:42
osv
Positive Technologies
PT-2026-22832
3 Mar 202600:00
ptsecurity
RedhatCVE
CVE-2026-21866
5 Mar 202601:57
redhatcve
Vulnrichment
CVE-2026-21866 Dify - Stored XSS in chat
3 Mar 202621:42
vulnrichment
NVD
Vulners
Node
difydifyRange<1.11.2
[
  {
    "vendor": "langgenius",
    "product": "dify",
    "versions": [
      {
        "version": "< 1.11.2",
        "status": "affected"
      }
    ]
  }
]

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17 Jun 2026 10:19Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.15.4
CVSS 45.1
EPSS0.00218
SSVC
15