Description
SurrealDB before 2.0.5, 2.1.x before 2.1.5, and 2.2.x before 2.2.2 allows authenticated users with OWNER or EDITOR permissions (at the root, namespace, or database level) to define custom database functions via DEFINE FUNCTION using nested FOR loops. Although a single loop's iteration count is constrained, nesting multiple loops (e.g., each with 1,000,000 iterations) is not, so an attacker can execute a function that consumes all server CPU time. Configured timeouts do not stop the execution, rendering the server unresponsive to other queries and connections until it is manually restarted.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
surrealdb surrealdb
Default version status: unaffected
2.2.0 to < 2.2.2affected2.2.2unaffected
pkg:cargo/surrealdbsurrealdb surrealdb
Default version status: unaffected
2.1.0 to < 2.1.5affected2.1.5unaffected
pkg:cargo/surrealdbsurrealdb surrealdb
Default version status: unaffected
0 to < 2.0.5affected2.0.5unaffected
pkg:cargo/surrealdb