{"id":"CVE-2026-100618","title":"Capgo (capgo.app) is affected by an authorization flaw in the app icon update path","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 p…","severity":"high","cvss":8.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N","cwe":["CWE-639"],"vendor":"Cap-go","product":"capgo.app","affected":["capgo.app"],"published":"2026-09-26","updated":"2026-09-26","sourceUpdated":"2026-09-26T14:16:42.600","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-100618","references":[{"url":"https://github.com/Cap-go/capgo.app/security/advisories/GHSA-669c-gwrr-hc53","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/capgo-app-icon-update-privilege-escalation-via-service-role-worker","label":"disclosure@vulncheck.com"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-26T13:33:20.931Z","slug":"CVE-2026-100618","body":"## Overview\n\nCapgo (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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":47,"depthScoreParts":{"impact":46.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}