{"id":"CVE-2026-104973","aliases":["EUVD-2026-92526"],"status":"published","title":"Plane: DNS Rebinding Bypass of CVE-2026-30242 SSRF Fix in Webhook Delivery","description":"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.","severity":{"version":"3.1","score":7.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00332,"percentile":0.26745,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-918"],"published":"2026-10-05T17:41:33Z","modified":"2026-10-28T02:30:26Z","products":[{"vendor":"makeplane","product":"plane"}],"references":[{"url":"https://github.com/makeplane/plane/security/advisories/GHSA-whh3-5g95-4qhc","tags":["x_refsource_CONFIRM","advisory"]},{"url":"https://github.com/makeplane/plane/pull/9163","tags":["x_refsource_MISC","fix"]},{"url":"https://github.com/makeplane/plane/commit/04622ce1188c4680951f0001e35efb342fe51615","tags":["x_refsource_MISC","fix"]},{"url":"https://github.com/makeplane/plane/releases/tag/v1.4.0","tags":["x_refsource_MISC","web"]},{"url":"https://github.com/cthackers/adm-zip/security/advisories/GHSA-j5f4-cc29-5x44","tags":["exploit","evidence"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/104xxx/CVE-2026-104973.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-104973","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-104973","title":"Plane: DNS Rebinding Bypass of CVE-2026-30242 SSRF Fix in Webhook Delivery","description":"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.","status":"published","published":"2026-10-05T17:41:33.11Z","modified":"2026-10-07T20:54:46.744Z","cvss":[{"version":"3.1","score":7.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:N","level":"high","assessor":"cna"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T14:20:09.448255Z"}],"euvd":[{"id":"EUVD-2026-92526","description":"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.","status":"published","published":"2026-10-05T17:41:33Z","modified":"2026-10-07T20:54:46Z","cvss":[{"version":"3.1","score":7.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:N","level":"high"}],"updated_at":"2026-11-02T17:27:33.555595Z"}],"nvd":[{"id":"CVE-2026-104973","description":"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.","status":"published","published":"2026-10-05T18:17:32.29Z","modified":"2026-10-07T21:17:09.833Z","cvss":[{"version":"3.1","score":7.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:N","level":"high","assessor":"secondary"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T14:12:54.129949Z"}],"osv":[{"id":"CVE-2026-104973","title":"Plane: DNS Rebinding Bypass of CVE-2026-30242 SSRF Fix in Webhook Delivery","description":"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.","status":"published","published":"2026-10-05T17:41:33.11Z","modified":"2026-10-28T02:30:26.087296333Z","cvss":[{"version":"3.1","score":7.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:N","level":"high"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T15:44:54.236592Z"}]}}