Vulnerability Database

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Total vulnerabilities in the database

SurrealDB: Authenticated subscribers can read records hidden by SELECT permissions via LIVE subscriptions — surrealdb

Incorrect Authorization

A record user could read records the table's SELECT permission expression should have hidden, when that expression referenced $value, $before, $after, or $event. Binding a chosen value to that name before registering a LIVE SELECT caused notifications to evaluate the permission against the attacker's input instead of the real document.

Impact

A record user binds a value to $value, $before, $after, or $event (e.g. LET $value = [$auth.id]) and registers LIVE SELECT * FROM person. The captured value shadows the real document at notification time, so a SELECT permission like WHERE $auth.id.id() IN $value passes for every record on the table — the subscriber receives notifications for records they should not see.

Read-only impact, bounded to one table. Permission expressions that reference only field names, $auth, or $session are unaffected.

Patches

A patch has been introduced that re-orders the LIVE notification parameter binding so captured user variables are added first and the trusted document-context and session parameters are added last.

  • Versions 3.1.0 and later are not affected by this issue.

Workarounds

Affected users who are unable to update should avoid table-PERMISSIONS and LIVE WHERE expressions that read user-named variables ($value, $before, $after, $event) without also gating on a system-derived field such as the record id.

  • Published: Jul 1, 2026
  • Updated: Jul 2, 2026
  • GHSA: GHSA-6wqw-vhfr-9999
  • Severity: Medium
  • Exploit:
  • CISA KEV:

CVSS v3:

  • Severity: Low
  • Score: 4.3
  • AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

CWEs:

Frequently Asked Questions

A security vulnerability is a weakness in software, hardware, or configuration that can be exploited to compromise confidentiality, integrity, or availability. Many vulnerabilities are tracked as CVEs (Common Vulnerabilities and Exposures), which provide a standardized identifier so teams can coordinate patching, mitigation, and risk assessment across tools and vendors.

CVSS (Common Vulnerability Scoring System) estimates technical severity, but it doesn't automatically equal business risk. Prioritize using context like internet exposure, affected asset criticality, known exploitation (proof-of-concept or in-the-wild), and whether compensating controls exist. A "Medium" CVSS on an exposed, production system can be more urgent than a "Critical" on an isolated, non-production host.

A vulnerability is the underlying weakness. An exploit is the method or code used to take advantage of it. A zero-day is a vulnerability that is unknown to the vendor or has no publicly available fix when attackers begin using it. In practice, risk increases sharply when exploitation becomes reliable or widespread.

Recurring findings usually come from incomplete Asset Discovery, inconsistent patch management, inherited images, and configuration drift. In modern environments, you also need to watch the software supply chain: dependencies, containers, build pipelines, and third-party services can reintroduce the same weakness even after you patch a single host. Unknown or unmanaged assets (often called Shadow IT) are a common reason the same issues resurface.

Use a simple, repeatable triage model: focus first on externally exposed assets, high-value systems (identity, VPN, email, production), vulnerabilities with known exploits, and issues that enable remote code execution or privilege escalation. Then enforce patch SLAs and track progress using consistent metrics so remediation is steady, not reactive.

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