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CVE-2026-100618: capgo.app

Severity

8.7 (HIGH)

Vendor

CAP-GO

Patch status

Unpatched

Published

2026-09-26T14:16:42.600

Modified

2026-09-26T14:16:42.600

Why it matters

High-severity vulnerability requiring prioritized review.

Recommended admin actions

• Review and patch based on exposure, asset criticality, and business impact.
• Apply compensating controls or temporarily remove exposure until a vendor fix is available.

Technical summary

Capgo (capgo.app) is affected by an authorization flaw in the app icon update path. The PUT /app/:id endpoint accepts a user-controlled `icon` value, normalizes it, and stores it in public.apps.icon_url without verifying that the image path belongs to the target app's own image namespace (e.g. org/{owner_org}/{app_id}/…). Updating apps.icon_url fires the on_app_update trigger, whose worker reads record.icon_url and calls cleanStoredImageMetadata(), which runs with service-role credentials (supabaseAdmin()) and downloads and re-uploads the referenced storage object with upsert: true. As a result, an authenticated holder of an app-limited write API key can cause the privileged worker to rewrite an out-of-scope private image object (for example an organization logo) that the key cannot read or write directly under Supabase Storage RLS. All versions are affected; no patched version was available at the time of the advisory.

View the official NVD record for CVE-2026-100618

CVE data is sourced from NVD/CNA records and optional enrichment. Validate against the vendor advisory before taking production action.