SurrealDB: Denial of Service via deep operator chains — GHSA-JV2J-MQMW-XVV5

Summary

An authenticated user could crash a SurrealDB server with a single query containing a long chain of operators. Such a query — for example `RETURN 1 + 1 + 1 + ...` with tens of thousands of terms — is parsed into an expression tree one level deep per operator. Because the chain is flat and the pratt parser appends to it iteratively, the configured query- and object-recursion limits never fire, so the tree grows…

Product

rust: surrealdb

What to do

General, cautious steps (verify details in the official source):

• Review exposure and plan remediation based on risk and environment.
• Identify affected product versions in your inventory and verify whether you are impacted.
• Apply vendor patches/updates or recommended mitigations as soon as available.
• Read the official advisory for exact affected versions and remediation steps.

Official advisory

• Read the official source

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