CVE-2026-104973CWE-918ssrf

CVE-2026-104973

High · published October 5, 2026

CVSS v3.1
7.6
EPSS
0%
Percentile
17.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.6 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00268 · 17.9th percentile
Weakness
CWE-918 · Server-Side Request Forgery (SSRF)
Published
2026-10-05T22:17Z
References (5)
https://github.com/makeplane/plane/commit/04622ce1188c4680951f0001e35efb342fe51615 · [email protected]https://github.com/makeplane/plane/pull/9163 · [email protected]https://github.com/makeplane/plane/releases/tag/v1.4.0 · [email protected]https://github.com/makeplane/plane/security/advisories/GHSA-whh3-5g95-4qhc · [email protected]https://github.com/cthackers/adm-zip/security/advisories/GHSA-j5f4-cc29-5x44 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 08 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 05 OCT 17:41Z
    Plane: DNS Rebinding Bypass of CVE-2026-30242 SSRF Fix in Webhook Delivery
    cvelistv5
  • 05 OCT 17:41Z
    Plane: DNS Rebinding Bypass of CVE-2026-30242 SSRF Fix in Webhook Delivery
    cvelistv5