CVE-2026-63464

CVE-2026-63464 affects nebula-mesh , a self-hosted control plane for Slack Nebula mesh VPN, in versions 0.6.0 through before 0.7.2 . The vulnerability is an SSRF that arises because non-admin operators (role user) can set allow_private: true on their own webhook subscription via POST/PATCH /api/v...

CVE-2026-63464 Nebula-mesh allows non-admin operators to disable webhook SSRF protection via `allow_private`

nebula-mesh is a self-hosted control plane for Slack Nebula mesh VPN. From version 0.6.0 to before version 0.7.2, non-admin operators role user can set allowprivate: true on their own managed webhook subscription POST/PATCH /api/v1/webhook-subscriptions. No admin check exists on this field. At...