CVE-2026-42195: low-severity vulnerability in jgraph drawio
Unvalidated gitlab URL parameter redirects OAuth authorize step to attacker-controlled host
Published · Updated
8Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 3.4epss 0.3%
exploitation probability
0.3%top 78% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:N
Affected products
jgraph · drawioRelated CVEs — jgraph drawio
In the same product, most dangerous first.
CVE-2026-76898HIGHdraw.io: Unauthenticated SSRF via IPv6 ULA blocklist bypass in /embed2.jsEPSS 0.4%CVE-2026-63416LOWdraw.io: Path traversal in ExportProxyServlet allows access to arbitrary backend endpointsEPSS 0.3%CVE-2026-46642MEDIUMdraw.io: XSS via crafted cell label when opening a .drawio fileEPSS 0.3%CVE-2026-63334MEDIUMdraw.io: SSRF via DNS rebinding in ProxyServlet bypasses private IP blocklistEPSS 0.3%CVE-2026-58504MEDIUMdraw.io: Stored XSS on file open via editable=0 sibling cell — patch bypass of CVE-2026-46642EPSS 0.3%CVE-2026-63373MEDIUMdraw.io: OAuth CSRF via missing state validation on self-hosted deployments allows session token injectionEPSS 0.2%