CVE-2026-104973Plane: DNS Rebinding Bypass of CVE-2026-30242 SSRF Fix in Webhook Delivery
Updated under an hour ago ()
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It affects makeplane plane. Add what you run to find out whether that includes you.
EPSS puts the chance of exploitation in the next 30 days at 0.27%, higher than 18% of scored CVEs.
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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.
- CVSS
- 7.6 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:N
- Weakness (CWE)
- CWE-918
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- 0.27% (percentile 18)
- Assigned by
- GitHub_M
- NVD analysis
- Deferred
- Record last updated
- Oct 7, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
makeplane plane makeplane:plane (from the name) | before 1.4.0 | CNA record |
References
- https://github.com/makeplane/plane/security/advisories/GHSA-whh3-5g95-4qhcx-refsource-confirm
- https://github.com/makeplane/plane/pull/9163x-refsource-misc
- https://github.com/makeplane/plane/commit/04622ce1188c4680951f0001e35efb342fe51615x-refsource-misc
- https://github.com/makeplane/plane/releases/tag/v1.4.0x-refsource-misc
- https://github.com/cthackers/adm-zip/security/advisories/GHSA-j5f4-cc29-5x44
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.