{"id":"CVE-2026-104973","published":"2026-10-05T17:41:33Z","modified":"2026-10-07T20:54:46Z","title":"Plane: DNS Rebinding Bypass of CVE-2026-30242 SSRF Fix in Webhook Delivery","vendor":"makeplane","product":"plane","tier":"tail","description":{"text":"Plane is an open-source project management tool. Prior to 1.4.0, the fix for CVE-2026-30242 validates webhook IP addresses only when the webhook is created in apps/api/plane/app/serializers/webhook.py. The delivery task in apps/api/plane/bgtasks/webhook_task.py performs a separate DNS resolution when sending the request and does not validate the resolved IP address, allowing DNS rebinding to bypass the SSRF protection. This issue is fixed in 1.4.0.","provenance":"source","from":"CVE.org"},"cvss":{"score":7.6,"severity":"HIGH","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:N","provenance":"source","from":"CVE.org CNA"},"epss":{"score":0.00332,"percentile":0.26303,"provenance":"source"},"cwes":[{"id":"CWE-918","name":"Server-Side Request Forgery"}],"references":[{"url":"https://github.com/makeplane/plane/security/advisories/GHSA-whh3-5g95-4qhc","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/makeplane/plane/pull/9163","tags":["x_refsource_MISC"]},{"url":"https://github.com/makeplane/plane/commit/04622ce1188c4680951f0001e35efb342fe51615","tags":["x_refsource_MISC"]},{"url":"https://github.com/makeplane/plane/releases/tag/v1.4.0","tags":["x_refsource_MISC"]},{"url":"https://github.com/cthackers/adm-zip/security/advisories/GHSA-j5f4-cc29-5x44","tags":["exploit"]}],"priority":{"score":15.6,"factors":[{"name":"EPSS percentile","points":5.26},{"name":"Public exploit code","points":5.0},{"name":"CVSS severity","points":5.32}]},"vendorSlug":"makeplane","affectedVersions":[{"vendor":"makeplane","product":"plane","versions":["< 1.4.0"]}],"euvd":{"id":"EUVD-2026-92526","exploited":false,"provenance":"source"},"exploitRefs":["https://github.com/cthackers/adm-zip/security/advisories/GHSA-j5f4-cc29-5x44"],"lineage":{"familyId":"fam-makeplane-plane-cve-2026-30242","parents":[{"from":"CVE-2026-30242","to":"CVE-2026-104973","relation":"incomplete-fix","confidence":"high","kind":"lineage","evidence":[{"kind":"text","provenance":"source","relation":"incomplete-fix","quote":"Prior to 1.4.0, the fix for CVE-2026-30242 validates webhook IP addresses only when the webhook is created in apps/api/plane/app/serializers/webhook.py.","from":"CVE.org","in":"CVE-2026-104973"}]},{"from":"CVE-2026-102282","to":"CVE-2026-104973","relation":"related","confidence":"high","kind":"lineage","evidence":[{"kind":"osv-related","provenance":"source","id":"GHSA-j5f4-cc29-5x44","via":"related"}]}]}}