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react-doctor/supabase-client-owned-authz-field

When the client writes authorization columns (`ownerId`, `orgId`, `role`, `isAdmin`) to Supabase, an attacker can forge them and escalate their own access.

Status
Active
Category
Security
Assessment
Evidence-required risk
Required evidence
source code, repository context
Default configuration
Enabled
Default severity
error
Show technical metadata
Scope
All supported frameworks
Active when
client (browser-bundled) production source files; server dirs (api/backend/server/middleware/route/functions/lambdas/workers, *.server.*) skipped
Tags
security-scan
Priority
75 (P1)
Source
oxlint-plugin-react-doctor
Rule set
oxlint-plugin-react-doctor 0.9.3 (prompt schema 2)
On this page

Validation prompt

Confirm the detector match and collect the required evidence before deciding whether an edit is warranted.

Fires in client (browser) code only when BOTH signals are present: (a) a Supabase write: supabase…insert(/upsert(/update(, or .from(...) followed by insert/upsert/update( with an object/array-literal argument: that includes an authorization column (ownerId, creatorId, userId, orgId, tenantId, role, or isAdmin), and (b) a sensitive-field name (ownerId|creatorId|userId|uid|providerId|orgId|tenantId|teamId|workspaceId|role|roles|isAdmin|admin, with Id/ID variants) appearing in the file. The two-signal gate avoids flagging files that merely mention these names.

Suppress when: the written value comes from a trusted server context the client only echoes back (an authenticated session id, or a column an RLS with check policy independently re-verifies) rather than raw client input: confirm whether RLS actually constrains the column server-side.

Evidence boundary

The diagnostic proves only that the detector’s modeled source pattern matched. It does not prove runtime impact, product intent, rendered failure, or that one remediation is correct.

Establish the environment, repository policy, exceptions, and required rendered or runtime evidence before deciding the occurrence.

Record one outcome:

  • Confirmed failure: The required evidence establishes the violation.
  • Rejected: A documented exception or false-positive predicate applies.
  • Needs evidence: Named evidence can still be collected.
  • Unavailable: Required evidence cannot be collected in this run.
  • Waived with evidence: An authorized, scoped exception applies to an established failure.
  • Observation: The review records an optional tradeoff without claiming a defect.

A waiver records its scope, authority, evidence, and review condition. It is not a pass or false positive.

Default severity is registry metadata. Use the occurrence’s JSON severity after repository configuration when ordering real findings.

Fix prompt

Apply this candidate correction only after the required evidence confirms the risk.

Stop sending owner, org, tenant, or role columns from the client; let the database set them. Default user_id to auth.uid(), derive org and role from server-owned membership rows, and enforce it with an RLS with check policy so a forged ownerId or role in the payload is rejected. Move any genuinely privileged write behind a server route or a security definer Postgres function that validates the actor.

Repository-wide copy prompt

Use this repository-wide prompt only after validating each occurrence. For one occurrence, use the guidance above.

Show repository-wide prompt

Fix every confirmed react-doctor/supabase-client-owned-authz-field diagnostic in the current repository.

Required change:

  • Stop sending owner, org, tenant, or role columns from the client; let the database set them. Default user_id to auth.uid(), derive org and role from server-owned membership rows, and enforce it with an RLS with check policy so a forged ownerId or role in the payload is rejected. Move any genuinely privileged write behind a server route or a security definer Postgres function that validates the actor.

Validation before editing:

Fires in client (browser) code only when BOTH signals are present: (a) a Supabase write: supabase…insert(/upsert(/update(, or .from(...) followed by insert/upsert/update( with an object/array-literal argument: that includes an authorization column (ownerId, creatorId, userId, orgId, tenantId, role, or isAdmin), and (b) a sensitive-field name (ownerId|creatorId|userId|uid|providerId|orgId|tenantId|teamId|workspaceId|role|roles|isAdmin|admin, with Id/ID variants) appearing in the file. The two-signal gate avoids flagging files that merely mention these names.

Suppress when: the written value comes from a trusted server context the client only echoes back (an authenticated session id, or a column an RLS with check policy independently re-verifies) rather than raw client input: confirm whether RLS actually constrains the column server-side.

Constraints:

  • Make the smallest change that fixes the root cause.
  • Preserve behavior and interfaces unrelated to this diagnostic.
  • Reuse existing project components, utilities, and conventions.
  • Keep validation and authorization on trusted boundaries. Do not replace them with client-only checks.
  • Adapt identifiers and framework details instead of copying blindly.
  • Do not disable the rule or suppress matching code.
  • Confirm this rule is enabled for the project: client (browser-bundled) production source files; server dirs (api/backend/server/middleware/route/functions/lambdas/workers, *.server.*) skipped.

Assessment:

  • Record detector evidence, applicability facts, assumptions, missing evidence, and the rule class for this occurrence.
  • Return one outcome: Confirmed failure, Rejected, Needs evidence, Unavailable, Waived with evidence, or Observation.
  • A waiver records the established failure, scope, authority, evidence, and review or expiry condition. It is not a pass or false positive.

Verification:

  • Run focused tests for the changed behavior.
  • Run React Doctor and confirm this diagnostic no longer appears from changed code.
  • Run an unfiltered scan of the affected scope before claiming no cross-category regression.
  • Report the files changed and any checks you could not run.