要点
- CVE-2026-30242 は plane, plane (plane) に影響する深刻度「高」 (CVSS 8.5) の脆弱性です。
- 今後30日間に悪用される確率（EPSS）：0.38%（全脆弱性の 31.5% より高い）。
- 対処：1.2.3 以降に更新してください。
| パッケージ | 影響を受けるバージョン | 修正済みバージョン |
|---|
| plane PyPI | < 1.2.3
| 1.2.3
|
| plane | < 1.2.3
| 1.2.3
|
概要
Summary
The webhook URL validation in plane/app/serializers/webhook.py only checks ip.is_loopback, allowing attackers with workspace ADMIN role to create webhooks pointing to private/internal network addresses (10.x.x.x, 172.16.x.x, 192.168.x.x, 169.254.169.254, etc.). When webhook events fire, the server makes requests to these internal addresses and stores the response — enabling SSRF with full response read-back.
Impact
- Cloud metadata exfiltration: Access AWS/GCP/Azure instance metadata (IAM credentials, tokens)
- Internal service scanning: Probe internal network services not exposed to the internet
- Data exfiltration via response logs: Full response body from internal services is stored and returned to the attacker through the webhook logs API
- Bypass vectors:
10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16, 169.254.0.0/16, 0.0.0.0, ::ffff: mapped addresses
NVD の説明
Plane is an an open-source project management tool. Prior to version 1.2.3, the webhook URL validation in plane/app/serializers/webhook.py only checks ip.is_loopback, allowing attackers with workspace ADMIN role to create webhooks pointing to private/internal network addresses (10.x.x.x, 172.16.x.x, 192.168.x.x, 169.254.169.254, etc.). When webhook events fire, the server makes requests to these internal addresses and stores the response — enabling SSRF with full response read-back. This issue has been patched in version 1.2.3.
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