Riskcovery

CVE-2026-42195

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

State
Published
Severity
3.4 Low
Published
May 8, 2026
Updated
May 13, 2026
Reserved
Apr 25, 2026

Read the record on cve.org

Description

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.

Scores

CVSSScoreVectorSource
3.13.4 LowCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:NGitHub_M

Weaknesses

  • CWE-601 URL Redirection to Untrusted Site ('Open Redirect')
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

Affected Products

ProductVersions
drawiojgraph
  • < 29.7.9Affected

References

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