{"id":"CVE-2026-109339","revision":"ddf68797b4424dc8b6ef4cd3f2185cc5","records":[{"revision":"ddf68797b4424dc8b6ef4cd3f2185cc5","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-109339","aliases":[],"title":"SurrealDB 3.1.0 before 3.3.0 Memory Exhaustion via Surrealism Module Output Buffering","description":"SurrealDB 3.1.0 before 3.3.0 lets Surrealism modules exhaust server memory because module stdout/stderr lines are buffered unbounded in host memory, bypassing the configured module memory limit. An attacker can run an Owner-installed malicious module that writes output without newlines, crashing the server and denying service to all namespaces and databases.","state":0,"publishedAt":"2026-10-12T16:05:25.82+00:00","modifiedAt":"2026-10-13T16:53:58.068+00:00","affected":[{"ecosystem":"Vendor product","name":"surrealdb","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"surrealdb\",\n                    \"product\": \"surrealdb\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"packageURL\": \"pkg:cargo/surrealdb\",\n                    \"versions\": [\n                        {\n                            \"version\": \"3.1.0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"lessThan\": \"3.3.0\"\n                        },\n                        {\n                            \"version\": \"3.3.0\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"surrealism-runtime","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"surrealdb\",\n                    \"product\": \"surrealism-runtime\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"packageURL\": \"pkg:cargo/surrealism-runtime\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0.3.0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"lessThan\": \"0.6.0\"\n                        },\n                        {\n                            \"version\": \"0.6.0\",\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:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","score":6.9,"severity":"MEDIUM"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H","score":4.9,"severity":"MEDIUM"}],"references":["https://github.com/surrealdb/surrealdb/security/advisories/GHSA-jj89-wvrw-c4gp","https://www.vulncheck.com/advisories/surrealdb-3.1.0-before-3.3.0-memory-exhaustion-via-surrealism-module-output-buffering"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-109339","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-109339","identifiers":["CVE-2026-109339"]},"retained":false,"historicalAffected":[]}],"coverage":[]}