CVE-2026-109337 surrealdb CVE debrief

Who should care

Defenders responsible for SurrealDB deployments should assess exposure and prioritize verification and remediation efforts. This includes reviewing and restricting LIVE SELECT WHERE predicates in SurrealDB queries, monitoring SurrealDB logs for suspicious activity, and prioritizing upgrading to SurrealDB version 3.3.0 or later to mitigate this vulnerability. Additionally, defenders should review compensating controls for exposed systems while remediation

Why it matters

CVE-2026-109337 is a field permission bypass vulnerability in SurrealDB before version 3.3.0 that allows record users to infer field values hidden by field-level SELECT permissions. Defenders responsible for SurrealDB deployments should assess exposure and prioritize verification and remediation efforts.

• Defenders need to verify and restrict LIVE SELECT WHERE predicates in SurrealDB queries to prevent unauthorized access to sensitive data.
• Defenders should monitor SurrealDB logs for suspicious activity to detect potential exploitation attempts.
• Defenders need to prioritize upgrading to SurrealDB version 3.3.0 or later to mitigate this vulnerability.

Technical summary

The vulnerability allows record users to infer field values hidden by field-level SELECT permissions using LIVE SELECT WHERE predicates over $before or $after. Attackers can craft repeated predicates and observe whether notifications are delivered on CREATE, UPDATE, or DELETE to confirm or narrow restricted field values. This issue affects SurrealDB deployments prior to version 3.3.0, where defenders need to verify and restrict LIVE SELECT WHERE predicates in SurrealDB queries to prevent unauthorized access to sensitive data.

Defensive priority

Defenders should prioritize verifying and upgrading to SurrealDB version 3.3.0 or later to mitigate this vulnerability.

Recommended defensive actions

• Verify and upgrade to SurrealDB version 3.3.0 or later
• Review and restrict LIVE SELECT WHERE predicates in SurrealDB queries
• Monitor SurrealDB logs for suspicious activity
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The vulnerability is described in the CVE Program record and the NVD vulnerability detail page. The source item provides additional information about the vulnerability, including affected versions and references to vendor advisories.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.