CVE-2026-104973

HighCVSS 7.6/10Last modified Oct 7, 2026

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.

Metrics

CVSS 3.1 7.6/10CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:N

Weakness enumeration

CWE-918

Affected software

No affected versions have been published.

Timeline

Published: Oct 5, 2026
Last modified: Oct 7, 2026
NVD status: Deferred

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