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TI-2026-30516 Aliases CVE-2026-42195

Unvalidated gitlab URL parameter redirects OAuth authorize step to attacker-controlled host

Priority LOW 16CWE-200Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
High
Impact type
Information disclosure, Spoofing
Confidentiality · integrity · availability
Low · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-200 and CWE-601.

Summary

draw.io is a configurable diagramming and whiteboarding application. Prior to version 29.7.9, the draw.io client accepts a ?gitlab= URL parameter that overrides the GitLab server URL used during OAuth sign-in. A crafted link causes the user's click on draw.io's "Authorize in GitLab" dialog to open a popup on the attacker-controlled host instead of gitlab.com. This can lead to credential fishing and session state token exfiltration. This issue has been patched in version 29.7.9.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00192 8th percentileScored 2026-11-07
Fix Fixed drawio (jgraph): 29.7.9

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
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 29.7.929.7.9Patch availableCNA
  • drawio Vendorjgraph Affected before 29.7.9 Fixed in 29.7.9 Patch available CNA

Remediation

  • Fix · CNA drawio (jgraph) Fixed in 29.7.9

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-42195

References

Other 3

  • 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