CVE-2026-63762
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
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| surrealdb | surrealdb | 0 < 2.6.1 | affected |
| surrealdb | surrealdb | 2.6.1 | unaffected |
| surrealdb | surrealdb | 0 < 3.0.0-beta.3 | affected |
| surrealdb | surrealdb | 3.0.0-beta.3 | unaffected |
Weaknesses
- CWE-476: NULL Pointer Dereference
References
- https://github.com/surrealdb/surrealdb/security/advisories/GHSA-xx7m-69ff-9crp
- https://www.vulncheck.com/advisories/surrealdb-before-denial-of-service-via-scripting
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