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CVE-2026-28478

CVE-2026-28478 · OpenClaw < 2026.2.13 - Denial of Service via Unbounded Webhook Request Body Buffering

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 8.7 · High · EPSS 0.5% · Fix available

Published
Updated

Stack: node

Affected products and versions

  • openclaw

    Versions
    • ≥ 0, < 2026.2.13: Affected (custom)

    Update to 2026.2.13

  • openclaw npm

    Affected ranges
    • SEMVER: < 2026.2.13

    Update to 2026.2.13

  • clawdbot npm

    Affected ranges
    • SEMVER: ≤ 2026.1.24-3

    No fix published

Original sources

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