{"id":"CVE-2026-42195","summary":"Unvalidated gitlab URL parameter redirects OAuth authorize step to attacker-controlled host","details":"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.","aliases":["GHSA-8x7j-m8px-7p8x"],"modified":"2026-09-09T11:30:49.080539253Z","published":"2026-05-08T21:22:40.678Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42195.json","cna_assigner":"GitHub_M","cwe_ids":["CWE-200","CWE-601"]},"references":[{"type":"WEB","url":"https://github.com/jgraph/drawio/releases/tag/v29.7.9"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42195.json"},{"type":"ADVISORY","url":"https://github.com/jgraph/drawio/security/advisories/GHSA-8x7j-m8px-7p8x"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-42195"},{"type":"REPORT","url":"https://github.com/jgraph/drawio/issues/493"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/jgraph/drawio","events":[{"introduced":"0"},{"fixed":"5dc0133c688dc28e1990f0b0fb4808732e814f09"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"29.7.9"}],"source":["AFFECTED_FIELD","REFERENCES"]}}],"versions":["v29.6.10","v29.6.7","v29.6.6","v29.6.5","v29.6.4","v29.6.3","v29.6.1","v29.5.2","v29.5.1","v29.3.6","v29.3.5","v29.3.2","v29.3.0","v29.2.9","v29.2.7","v29.2.6","v29.2.2","v29.0.3","v29.0.2","v28.2.9","v28.2.8","v28.2.7","v28.2.5","v28.2.3","v28.2.0","v28.1.2","v28.1.1","v28.0.9","v28.0.7","v28.0.6","v28.0.5","v28.0.4","v28.0.3","v28.0.1","v27.1.6","v27.0.9","v27.0.5","v27.0.2","v26.2.15","v26.2.8","v26.2.7","v26.2.2","v26.1.1","v26.1.0","v26.0.16","v26.0.15","v26.0.13","v26.0.9","v26.0.7","v26.0.6","v26.0.4","v26.0.3","v26.0.2","v26.0.0","v25.0.2","v25.0.1","v25.0.0","v24.8.9"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-42195.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:N"}]}