{"id":"CVE-2026-63762","summary":"SurrealDB before v2.6.1 Denial of Service via scripting","details":"SurrealDB before v2.6.1 (and before v3.0.0-beta.3) contains a denial of service vulnerability in its embedded JavaScript scripting engine, which is enabled via the --allow-scripting capability (disabled by default). Any user able to execute arbitrary queries — including unauthenticated guests when --allow-guests is enabled — can use built-in string functions to construct a large string and pass it to the JavaScript runtime for compilation, triggering a null pointer dereference in the underlying QuickJS-NG engine. This causes the server process to terminate immediately without graceful shutdown, requiring a manual restart. The issue was fixed by updating the rquickjs dependency from v0.9.0 to v0.11.0.","aliases":["GHSA-xx7m-69ff-9crp"],"modified":"2026-08-12T03:51:39.359324320Z","published":"2026-07-20T12:04:51.673Z","database_specific":{"cna_assigner":"VulnCheck","cwe_ids":["CWE-476"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63762.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63762.json"},{"type":"ADVISORY","url":"https://github.com/surrealdb/surrealdb/security/advisories/GHSA-xx7m-69ff-9crp"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-63762"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/surrealdb-before-denial-of-service-via-scripting"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/surrealdb/surrealdb","events":[{"introduced":"0"},{"fixed":"0dee3af0083916e599aaaf989de8c02679a401be"}],"database_specific":{"cpe":"cpe:2.3:a:surrealdb:surrealdb:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"fixed":"2.6.1"}],"source":"CPE_RANGE"}}],"versions":["v2.6.0","v2.5.0","v2.4.1","v2.4.0","v2.3.10","v2.3.9","v2.3.8","v2.3.5","v2.3.4","v2.3.2","v2.3.1","v2.3.0","v2.0.4","v2.2.0","v2.1.2","v2.1.1","v2.1.0","v2.0.3","v2.0.2","v2.0.1","v2.0.0","v2.0.0-beta.3","v2.0.0-beta.2","v2.0.0-beta.1","v2.0.0-alpha.9","v2.0.0-alpha.8","v2.0.0-alpha.7","v2.0.0-alpha.6","v2.0.0-alpha.5","v2.0.0-alpha.4","v2.0.0-alpha.3","v2.0.0-alpha.2","v2.0.0-alpha.1","v1.0.0","v1.0.0-beta.12","v1.0.0-beta.11","v1.0.0-beta.10","v1.0.0-beta.9+20230402","v1.0.0-beta.9","v1.0.0-beta.8","v1.0.0-beta.7","v1.0.0-beta.6","v1.0.0-beta.5","v1.0.0-beta.4","v1.0.0-beta.3","v1.0.0-beta.2","v1.0.0-beta.1","v0.3.0","v0.1.30","v0.1.29","v0.1.28","v0.1.27","v0.1.26","v0.1.25","v0.1.24","v0.1.23","v0.1.22","v0.1.21","v0.1.20","v0.1.19","v0.1.18","v0.1.17","v0.1.16","v0.1.15","v0.1.14","v0.1.13","v0.1.12","v0.1.11","v0.1.10","v0.1.9","v0.1.8","v0.1.7","v0.1.6","v0.1.5","v0.1.4","v0.1.3","v0.1.2","v0.1.1","v0.1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-63762.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"}]}