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CVE-2026-100618— Capgo App Icon Update Privilege Escalation via Service-Role Worker

Quick assessment

Affected
Cap-go capgo.app
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Capgo（capgo.app）在其应用图标更新路径中存在一个授权缺陷。PUT /app/:id 端点接受由用户控制的 值，对其进行标准化处理后，将其存储到 public.apps.icon_url 中，但未验证该图片路径是否属于目标应用自身的图片命名空间（例如 org/{owner_org}/{app_id}/...）。更新 apps.icon_url 会触发 on_app_update 事件，其对应的 Worker 进程读取 record.icon_url 并调用 cleanStoredImageMetadat

CVSS 8.5 · High EPSS 0.21% · P10
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I. Basic Information for CVE-2026-100618

Vulnerability Information
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Vulnerability Title
Capgo App Icon Update Privilege Escalation via Service-Role Worker
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Cap-go capgo.app - -

II. Public POCs for CVE-2026-100618

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III. Intelligence Information for CVE-2026-100618

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Vendor Advisories for CVE-2026-100618 (1)

Other References for CVE-2026-100618 (1)

Same Patch Batch · Cap-go · 2026-09-26 · 19 CVEs total

CVE-2026-100619 8.8 HIGH Capgo OTA Manifest Poisoning via app_versions.manifest Bypass
CVE-2026-100614 8.8 HIGH Capgo before 12.244.1 Cross-Tenant Image Overwrite via Metadata Worker
CVE-2026-100623 8.8 HIGH Capgo Authentication Bypass via Direct PostgREST org_users Table Write
CVE-2026-100617 8.8 HIGH Cap-go capgo.app Authorization Bypass via channel_permission_overrides
CVE-2026-100615 8.8 HIGH Cap-go capgo.app before 12.267.1 Privilege Escalation via API Key Rotation
CVE-2026-100627 8.1 HIGH Capgo bundle promotion API channel RBAC deny override bypass
CVE-2026-100622 7.5 HIGH capgo.app through 12.129.0 Cache Restoration of Deleted Bundles
CVE-2026-100612 7.2 HIGH Capgo SSO Provider ID Authentication Bypass via Incomplete Migration
CVE-2026-100625 7.1 HIGH Capgo Build Upload Proxy Authorization Bypass via TUS Resource
CVE-2026-100611 6.5 MEDIUM Capgo apikey_manager Role Privilege Escalation via Incomplete Role Deny-list
CVE-2026-100629 5.5 MEDIUM Capgo backend before 12.127.5 Privilege Escalation via role_bindings PATCH
CVE-2026-100616 5.5 MEDIUM capgo.app Authentication Bypass via PostgREST customer_id Mutation
CVE-2026-100624 5.4 MEDIUM Capgo.app before 12.264.5 Upload Expiry Bypass via build upload
CVE-2026-100613 5.3 MEDIUM capgo.app Authorization Bypass via Stale Channel Permission Overrides
CVE-2026-100626 4.3 MEDIUM capgo through 12.128.2 IDOR via PUT /app icon endpoint
CVE-2026-100628 4.3 MEDIUM capgo.app before 12.128.12 Authentication Bypass via apikey
CVE-2026-100621 4.3 MEDIUM capgo.app Content-Lock Bypass via r2-direct Bundle Mutation
CVE-2026-100620 3.8 LOW Capgo CLI through 7.98.2 Excessive Permissions via Overpermissioned Play Console Service A

IV. Related Vulnerabilities

Same product: capgo.app
Same vendor: Cap-go
Same weakness: CWE-639

V. Comments for CVE-2026-100618

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