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CVE

CWE

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CVE-2026-42195

Published: May 8, 2026

Modified: May 13, 2026

PUBLISHED

CVSS v3.1

3.4

LOW

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.

Vendor	Product	Versions
jgraph	drawio	affected `< 29.7.9`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:N

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

None

Availability

None

References

https://github.com/jgraph/drawio/security/advisories/GHSA-8x7j-m8px-7p8x

x_refsource_CONFIRM

https://github.com/jgraph/drawio/issues/493

x_refsource_MISC

https://github.com/jgraph/drawio/releases/tag/v29.7.9

x_refsource_MISC

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