MinorCritical vulnerability

CVE-2026-104973 (CVSS 7.6)

NVD · officialPublished Oct 5, 2026Risk 23/100

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.

Technical details

CVSS

7.6

AV:NetworkAC:LowPR:HighUI:NoneC:HighI:LowA:None

Evidence and sources

This record is attributed to NVD. Exploitation status and remediation guidance are kept separate from the vulnerability's technical severity.

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