CVE WatchOct 7, 2026

CVE-2026-104973

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 web

CVSS

7.6

High

EPSS

0.3%

p18

KEV

—

Exploit Today

0-100

Published: Oct 5, 2026 · Last modified: Oct 7, 2026 · CWE-918

EPSS · 30d

0.3%EPSS · 30 days0.3%

2026-10-062026-10-21

Technical 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.

Official references

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