{"id":"CVE-2026-82241","revision":"be1a56db3cba452a99a76d87530bd9a1","records":[{"revision":"be1a56db3cba452a99a76d87530bd9a1","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-82241","aliases":[],"title":"Budibase backend-core SSRF via incomplete default blacklist","description":"Budibase backend-core (@budibase/backend-core, as used by @budibase/server) omits the shared address space range 100.64.0.0/10 from its default SSRF blacklist (DEFAULT_BLACKLIST) used by REST datasource query previews. When the default blacklist is active (i.e., a self-hosted deployment has not defined BLACKLIST_IPS), an authenticated user with the Builder permission can submit a REST datasource query preview request to POST /api/queries/preview targeting a reachable HTTP(S) service in the 100.64.0.0/10 range, causing the server to send a request to that target and return its response through the preview flow. Per the advisory, no released fix was identified at the time of publication; remediation is to add 100.64.0.0/10 to DEFAULT_BLACKLIST.","state":0,"publishedAt":"2026-08-28T10:49:29.355+00:00","modifiedAt":"2026-10-08T15:25:24.916+00:00","affected":[{"ecosystem":"Vendor product","name":"server","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"budibase\",\n                    \"product\": \"server\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"packageURL\": \"pkg:npm/%40budibase/server\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"lessThan\": \"3.41.3\"\n                        },\n                        {\n                            \"version\": \"3.41.3\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N","score":7.1,"severity":"HIGH"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N","score":7.1,"severity":"HIGH"}],"references":["https://github.com/Budibase/budibase/security/advisories/GHSA-9754-4wm6-3c8r","https://www.vulncheck.com/advisories/budibase-backend-core-ssrf-via-incomplete-default-blacklist"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-82241","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-82241","identifiers":["CVE-2026-82241"]},"retained":false,"historicalAffected":[]}],"coverage":[]}