{"id":"CVE-2026-30242","aliases":["EUVD-2026-10082","GHSA-fpx8-73gf-7x73"],"status":"published","title":"Plane: SSRF via Incomplete IP Validation in Webhook URL Serializer","description":"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.","severity":{"version":"3.1","score":8.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00375,"percentile":0.31853,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-918"],"published":"2026-03-05T21:43:15Z","modified":"2026-10-28T02:31:09Z","fixes":[{"ecosystem":"PyPI","package":"plane","fixed_in":["1.2.3"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"PyPI","package":"plane","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"1.2.1"},{"fixed":"1.2.3"}]}]},{"source":"osv","ecosystem":"PyPI","package":"plane","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.3"}]}],"versions":["0.0.1","0.0.2","0.0.3","0.0.4","0.0.5","0.0.6","0.0.7","0.0.8","0.1.0","0.1.1","0.1.2","0.1.3","0.1.4","0.1.5","0.1.6","0.1.7","0.1.8","0.1.9","0.2.0","0.2.1"]}],"products":[{"vendor":"makeplane","product":"plane"},{"vendor":"plane","product":"plane"}],"references":[{"url":"https://github.com/makeplane/plane/security/advisories/GHSA-fpx8-73gf-7x73","tags":["x_refsource_CONFIRM","Vendor Advisory","advisory","web"]},{"url":"https://github.com/makeplane/plane/releases/tag/v1.2.3","tags":["x_refsource_MISC","Release Notes","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-30242","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-fpx8-73gf-7x73"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/30xxx/CVE-2026-30242.json","tags":["advisory"]},{"url":"https://github.com/makeplane/plane","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-30242","title":"Plane: SSRF via Incomplete IP Validation in Webhook URL Serializer","description":"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.","status":"published","published":"2026-03-06T21:19:24.386Z","modified":"2026-03-09T20:54:28.052Z","cvss":[{"version":"3.1","score":8.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N","level":"high","assessor":"cna"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T13:44:07.200604Z"}],"euvd":[{"id":"EUVD-2026-10082","description":"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.","status":"published","published":"2026-03-06T21:19:24Z","modified":"2026-03-09T20:54:28Z","cvss":[{"version":"3.1","score":8.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N","level":"high"}],"updated_at":"2026-11-02T19:48:06.014236Z"}],"ghsa":[{"id":"GHSA-fpx8-73gf-7x73","title":"Plane has SSRF via Incomplete IP Validation in Webhook URL Serializer","description":"### Summary\nThe 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.\n\n### Impact\n- **Cloud metadata exfiltration**: Access AWS/GCP/Azure instance metadata (IAM credentials, tokens)\n- **Internal service scanning**: Probe internal network services not exposed to the internet\n- **Data exfiltration via response logs**: Full response body from internal services is stored and returned to the attacker through the webhook logs API\n- 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","status":"published","published":"2026-03-05T21:43:15Z","modified":"2026-03-09T13:12:14Z","cvss":[{"version":"3.1","score":8.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N","level":"high"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T14:39:32.329372Z"}],"nvd":[{"id":"CVE-2026-30242","description":"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.","status":"published","published":"2026-03-06T22:16:01.74Z","modified":"2026-06-17T10:32:33.153Z","cvss":[{"version":"3.1","score":8.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N","level":"high","assessor":"secondary"},{"version":"3.1","score":8.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N","level":"high","assessor":"primary"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T14:12:08.279852Z"}],"osv":[{"id":"CVE-2026-30242","title":"Plane: SSRF via Incomplete IP Validation in Webhook URL Serializer","description":"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.","status":"published","published":"2026-03-06T21:19:24.386Z","modified":"2026-10-28T02:31:09.975879727Z","cvss":[{"version":"3.1","score":8.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N","level":"high"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T15:45:00.530889Z"},{"id":"GHSA-fpx8-73gf-7x73","title":"Plane has SSRF via Incomplete IP Validation in Webhook URL Serializer","description":"### Summary\nThe 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.\n\n### Impact\n- **Cloud metadata exfiltration**: Access AWS/GCP/Azure instance metadata (IAM credentials, tokens)\n- **Internal service scanning**: Probe internal network services not exposed to the internet\n- **Data exfiltration via response logs**: Full response body from internal services is stored and returned to the attacker through the webhook logs API\n- 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","status":"published","published":"2026-03-05T21:43:15Z","modified":"2026-03-09T13:16:29.177805Z","cvss":[{"version":"3.1","score":8.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N","level":"high"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T15:46:46.760785Z"}]}}