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Permalink CVE-2026-28478
7.5 HIGH
  • CVSS version: 3.1
  • Attack vector (AV): NETWORK
  • Attack complexity (AC): LOW
  • Privileges required (PR): NONE
  • User interaction (UI): NONE
  • Scope (S): UNCHANGED
  • Confidentiality impact (C): NONE
  • Integrity impact (I): NONE
  • Availability impact (A): HIGH
updated 1 month, 3 weeks ago by @mweinelt Activity log
  • Created suggestion 1 month, 3 weeks ago
  • @mweinelt dismissed 1 month, 3 weeks ago
OpenClaw < 2026.2.13 - Denial of Service via Unbounded Webhook Request Body Buffering

OpenClaw versions prior to 2026.2.13 contain a denial of service vulnerability in webhook handlers that buffer request bodies without strict byte or time limits. Remote unauthenticated attackers can send oversized JSON payloads or slow uploads to webhook endpoints causing memory pressure and availability degradation.

Affected products

OpenClaw
  • <2026.2.13

Matching in nixpkgs

pkgs.openclaw

Self-hosted, open-source AI assistant/agent

Package maintainers

Unafffected, never had 2026.2.13 or older.