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CVE-2026-56249— Capgo - Unauthorized Channel Overwrite and Ownership Takeover via POST /channel Name Collision

CVSS 7.6 · High EPSS 0.26% · P17

Affected Version Matrix 2

VendorProductVersion RangeStatus
CapgoCapgo< 12.128.2affected
12.128.2unaffected
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I. Basic Information for CVE-2026-56249

Vulnerability Information
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Vulnerability Title
Capgo - Unauthorized Channel Overwrite and Ownership Takeover via POST /channel Name Collision
Source: NVD (National Vulnerability Database)
Vulnerability Description
Capgo before 12.128.2 contains an authorization bypass vulnerability in the channel creation endpoint that allows authenticated users to overwrite existing channels by reusing their names. Attackers with app.create_channel permission can exploit a logic mismatch between existence validation and upsert operations to reassign channel ownership and modify critical production channel configurations.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
授权机制不恰当
Source: NVD (National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
CapgoCapgo 0 ~ 12.128.2 -

II. Public POCs for CVE-2026-56249

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium
Qwen3.6-35B-A3B · 9928 chars
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III. Intelligence Information for CVE-2026-56249

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Vendor Advisories for CVE-2026-56249 (2)

Same Patch Batch · Capgo · 2026-06-30 · 15 CVEs total

CVE-2026-562308.8 HIGHCapgo - Broken Object Level Authorization via x-limited-key-id Header
CVE-2026-562478.8 HIGHCapgo - Privilege Escalation via Cross-Scope RBAC Role Assignment
CVE-2026-562338.3 HIGHCapgo - SSRF and Privilege Escalation via Path Traversal in Builder Upload Proxy
CVE-2026-562868.1 HIGHCapgo - Account Deletion Without Password Confirmation
CVE-2026-562197.5 HIGHCapgo - Unauthenticated RBAC Bindings and Email Disclosure via get_org_user_access_rbac NU
CVE-2026-563007.5 HIGHCapgo - Unauthenticated API Key Validity and Permission Oracle via RPC Functions
CVE-2026-563207.1 HIGHCapgo - Org/App Scope Mismatch in Device Creation Endpoint
CVE-2026-563286.5 MEDIUMCapgo - Integrity Issue in Release Routing via Multiple Public Channels
CVE-2026-562245.4 MEDIUMCapgo - Login CSRF and Session Fixation via URL Query Parameters
CVE-2026-563315.3 MEDIUMCapgo - Improper Error Handling in Accept Invitation Endpoint via Invalid Magic String
CVE-2026-563275.3 MEDIUMCapgo - Unauthenticated Organization Existence Oracle via public.invite_user_to_org RPC
CVE-2026-563185.3 MEDIUMCapgo - Information Disclosure via /private/validate_password_compliance Endpoint
CVE-2026-563334.3 MEDIUMCapgo - Server-Side Validation Bypass via Direct Browser-Side Organization Security Settin
CVE-2026-563344.3 MEDIUMCapgo - Missing UPDATE RLS Policy for Build Status Persistence

IV. Related Vulnerabilities

Same product: Capgo
Same vendor: Capgo
Same weakness: CWE-285

V. Comments for CVE-2026-56249

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