This advisory has been withdrawn because it is a duplicate of GHSA-64f8-pjgr-9wmr. This link is maintained to preserve external references.
SurrealDB before 1.5.5 (and 2.0.0-beta before 2.0.0-beta.3) accepts an arbitrary object in the signin and signup operations of the RPC API without recursively validating it for non-computed values. When a record access method defines a SIGNIN or SIGNUP query and the RPC API is exposed to untrusted users, an unauthenticated attacker can encode a binary object containing a subquery using the bincode serialization format and supply it in place of credentials. The subquery is then executed within the database owner's SIGNIN/SIGNUP query under a system user session with the editor role, allowing the attacker to select, create, update, and delete non-IAM resources (though not view the query results directly, and not affect IAM resources, which require the owner role).
{
"cwe_ids": [
"CWE-75"
],
"github_reviewed": true,
"github_reviewed_at": "2026-09-04T18:41:12Z",
"nvd_published_at": "2026-07-18T14:17:09Z",
"severity": "HIGH"
}