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TI-2026-34293 Aliases CVE-2026-46642

draw.io: XSS via crafted cell label when opening a .drawio file

Priority MEDIUM 60CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

draw.io is a configurable diagramming and whiteboarding application. Prior to version 29.7.12, a crafted .drawio file can execute arbitrary JavaScript in the editor's origin when the file is opened. The vulnerability is not in the label sanitizer (which works correctly on the rendering path) but in a feature-detection routine in the Text Format panel that reads the raw cell label and assigns it to a detached element's innerHTML without sanitization. Browsers fire onerror for failed image loads even on detached elements, so an <img src=x onerror=...> payload in any cell label triggers script execution as soon as the cell is selected — which import does automatically. This issue has been patched in version 29.7.12.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00221 12th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed drawio (jgraph): 29.7.12

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
jgraphdrawiobefore 29.7.1229.7.12Patch availableCNA
  • drawio Vendorjgraph Affected before 29.7.12 Fixed in 29.7.12 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:diagrams:drawio:*:*:*:*:*:*:*:*before 29.7.12VulnerableDiagrams
  • cpe:2.3:a:diagrams:drawio:*:*:*:*:*:*:*:* Versions before 29.7.12 Vulnerable ·Diagrams

Remediation

  • Fix · CNA drawio (jgraph) Fixed in 29.7.12

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-46642

References

Exploit 1

Other 1

  • TI-2023-03691 OS Command Injection in jgraph/drawio CVSS 3.1CRITICAL 9.8
  • TI-2023-03690 OS Command Injection in jgraph/drawio CVSS 3.1CRITICAL 9.8
  • TI-2026-53724 draw.io: Unauthenticated SSRF via IPv6 ULA blocklist bypass in /embed2.js CVSS 4.0HIGH 7.7
  • TI-2023-03178 Denial of Service in jgraph/drawio CVSS 3.1HIGH 7.5
  • TI-2026-83372 Search path hijacking in draw.io Desktop on Windows CVSS 3.1HIGH 7.8
  • TI-2023-02834 Cross-site Scripting (XSS) - Stored in jgraph/drawio CVSS 3.1MEDIUM 6.1
See all 39 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences